Input Style 5
<div class="form-style form-style-five">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <input type="text" placeholder="Default" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <input type="text" placeholder="Active" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <input type="text" placeholder="Error!" data-error="Assistive text" required />
                  <i class="lni lni-user"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <input type="text" placeholder="Success" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <input type="text" placeholder="Disabled" disabled />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
.form-style-five .form-input {
  position: relative;
}
.form-style-five .form-input label {
  position: absolute;
  top: -10px;
  left: 10px;
  background-color: var(--white);
  z-index: 5;
  padding: 0 5px;
}
.form-style-five .form-input .input-items input, .form-style-five .form-input .input-items textarea {
  border-radius: 5px;
}
Textarea Style 1
<div class="form-style form-style-one">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <textarea placeholder="Default"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <textarea placeholder="Active"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <textarea placeholder="Error!" data-error="Please enter your userid" required></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <textarea placeholder="Success"></textarea>
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <textarea placeholder="Disabled" disabled></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
Textarea Style 2
<div class="form-style form-style-two">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <textarea placeholder="Default"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <textarea placeholder="Active"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <textarea placeholder="Error!" data-error="Please enter your userid" required></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <textarea placeholder="Success"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <textarea placeholder="Disabled" disabled></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
.form-style-two .form-input .input-items input, .form-style-two .form-input .input-items textarea {
  border-radius: 5px;
  padding-left: 12px;
  padding-right: 44px;
}
.form-style-two .form-input .input-items i {
  left: auto;
  right: 13px;
}
Textarea Style 4
<div class="form-style form-style-four">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <textarea placeholder="Default"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <textarea placeholder="Active"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <textarea placeholder="Error!" data-error="Please enter your userid" required></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <textarea placeholder="Success"></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <textarea placeholder="Disabled" disabled></textarea>
                  <i class="lni lni-pencil-alt"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
.form-style-four .form-input {
  position: relative;
}
.form-style-four .form-input label {
  position: absolute;
  top: -10px;
  left: 10px;
  background-color: var(--white);
  z-index: 5;
  padding: 0 5px;
}
.form-style-four .form-input .input-items input, .form-style-four .form-input .input-items textarea {
  border-radius: 5px;
}
Input Style 2
<div class="form-style form-style-two">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <input type="text" placeholder="Default" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <input type="text" placeholder="Active" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <input type="text" placeholder="Error!" data-error="Please enter your userid" required />
                  <i class="lni lni-user"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <input type="text" placeholder="Success" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <input type="text" placeholder="Disabled" disabled />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
.form-style-two .form-input .input-items input, .form-style-two .form-input .input-items textarea {
  border-radius: 5px;
  padding-left: 12px;
  padding-right: 44px;
}
.form-style-two .form-input .input-items i {
  left: auto;
  right: 13px;
}
Textarea Style 3
<div class="form-style form-style-three">
        <div class="row">
          <div class="col-lg">
            <div class="form-input mt-5">
              <form action="#">
                <label>Enter userid</label>
                <div class="input-items default">
                  <textarea placeholder="Default"></textarea>
                  <i class="lni lni-pencil-alt"></i>
                </div>
              </form>
            </div>
            <!-- form input -->
          </div>
          <div class="col-lg">
            <div class="form-input mt-5">
              <form action="#">
                <label>Enter userid</label>
                <div class="input-items active">
                  <textarea placeholder="Active"></textarea>
                  <i class="lni lni-pencil-alt"></i>
                </div>
              </form>
            </div>
            <!-- form input -->
          </div>
          <div class="col-lg">
            <div class="form-input mt-5 form-group">
              <form action="#" data-toggle="validator">
                <label>Enter userid</label>
                <div class="input-items error">
                  <textarea placeholder="Error!" data-error="Please enter your userid" required></textarea>
                  <i class="lni lni-pencil-alt"></i>
                </div>
                <div class="help-block with-errors"></div>
              </form>
            </div>
            <!-- form input -->
          </div>
          <div class="col-lg">
            <div class="form-input mt-5">
              <form action="#">
                <label>Enter userid</label>
                <div class="input-items success">
                  <textarea placeholder="Success"></textarea>
                  <i class="lni lni-pencil-alt"></i>
                </div>
              </form>
            </div>
            <!-- form input -->
          </div>
          <div class="col-lg">
            <div class="form-input mt-5">
              <form action="#">
                <label>Enter userid</label>
                <div class="input-items disabled">
                  <textarea placeholder="Disabled" disabled></textarea>
                  <i class="lni lni-pencil-alt"></i>
                </div>
              </form>
            </div>
            <!-- form input -->
          </div>
        </div>
        <!-- row -->
      </div>
      <!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
.form-style-three .form-input label {
  padding-left: 44px;
  margin-bottom: 0;
}
.form-style-three .form-input .input-items input, .form-style-three .form-input .input-items textarea {
  border-top: 0;
  border-left: 0;
  border-right: 0;
}
Input Style 3
<div class="form-style form-style-three">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <input type="text" placeholder="Default" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <input type="text" placeholder="Active" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <input type="text" placeholder="Error!" data-error="Please enter your userid" required />
                  <i class="lni lni-user"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <input type="text" placeholder="Success" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <input type="text" placeholder="Disabled" disabled />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
.form-style-three .form-input {
  text-align: center;
}
.form-style-three .form-input .input-items input, .form-style-three .form-input .input-items textarea {
  border-radius: 50px;
  text-align: center;
}
Input Style 1
<div class="form-style form-style-one">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <input type="text" placeholder="Default" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <input type="text" placeholder="Active" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <input type="text" placeholder="Error!" data-error="Please enter your userid" required />
                  <i class="lni lni-user"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <input type="text" placeholder="Success" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <input type="text" placeholder="Disabled" disabled />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
Input Style 4
<div class="form-style form-style-four">
   <div class="row">
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items default">
                  <input type="text" placeholder="Default" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items active">
                  <input type="text" placeholder="Active" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5 form-group">
            <form action="#" data-toggle="validator">
               <label>Enter userid</label>
               <div class="input-items error">
                  <input type="text" placeholder="Error!" data-error="Please enter your userid" required />
                  <i class="lni lni-user"></i>
               </div>
               <div class="help-block with-errors"></div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items success">
                  <input type="text" placeholder="Success" />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
      <div class="col-lg">
         <div class="form-input mt-5">
            <form action="#">
               <label>Enter userid</label>
               <div class="input-items disabled">
                  <input type="text" placeholder="Disabled" disabled />
                  <i class="lni lni-user"></i>
               </div>
            </form>
         </div>
         <!-- form input -->
      </div>
   </div>
   <!-- row -->
</div>
<!-- form-style -->
.form-group {
  margin-bottom: 0;
}

.form-input .help-block {
  margin-top: 2px;
}
.form-input .help-block .list-unstyled li {
  font-size: 12px;
  line-height: 16px;
  color: var(--error);
}
.form-input label {
  font-size: 12px;
  line-height: 18px;
  color: var(--dark-3);
  margin-bottom: 8px;
  display: inline-block;
}
.form-input .input-items {
  position: relative;
}
.form-input .input-items input, .form-input .input-items textarea {
  width: 100%;
  height: 44px;
  border: 2px solid;
  padding-left: 44px;
  padding-right: 12px;
  position: relative;
  font-size: 16px;
}
.form-input .input-items input:focus, .form-input .input-items textarea:focus {
  box-shadow: var(--shadow-4);
}
.form-input .input-items textarea {
  padding-top: 8px;
  height: 130px;
  resize: none;
}
.form-input .input-items i {
  position: absolute;
  top: 11px;
  left: 13px;
  font-size: 20px;
  z-index: 9;
}
.form-input .input-items.default input, .form-input .input-items.default textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
}
.form-input .input-items.default input:focus, .form-input .input-items.default textarea:focus {
  border-color: var(--primary);
}
.form-input .input-items.default input::placeholder, .form-input .input-items.default textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.default i {
  color: var(--dark-3);
}
.form-input .input-items.active input, .form-input .input-items.active textarea {
  border-color: var(--primary);
  color: var(--black);
}
.form-input .input-items.active input::placeholder, .form-input .input-items.active textarea::placeholder {
  color: var(--black);
  opacity: 1;
}
.form-input .input-items.active i {
  color: var(--primary);
}
.form-input .input-items.error input, .form-input .input-items.error textarea {
  border-color: var(--error);
  color: var(--error);
}
.form-input .input-items.error input::placeholder, .form-input .input-items.error textarea::placeholder {
  color: var(--error);
  opacity: 1;
}
.form-input .input-items.error i {
  color: var(--error);
}
.form-input .input-items.success input, .form-input .input-items.success textarea {
  border-color: var(--success);
  color: var(--success);
}
.form-input .input-items.success input::placeholder, .form-input .input-items.success textarea::placeholder {
  color: var(--success);
  opacity: 1;
}
.form-input .input-items.success i {
  color: var(--success);
}
.form-input .input-items.disabled input, .form-input .input-items.disabled textarea {
  border-color: var(--gray-3);
  color: var(--dark-3);
  background: none;
}
.form-input .input-items.disabled input::placeholder, .form-input .input-items.disabled textarea::placeholder {
  color: var(--dark-3);
  opacity: 1;
}
.form-input .input-items.disabled i {
  color: var(--dark-3);
}
.form-style-four .form-input label {
  padding-left: 44px;
  margin-bottom: 0;
}
.form-style-four .form-input .input-items input, .form-style-four .form-input .input-items textarea {
  border-top: 0;
  border-left: 0;
  border-right: 0;
}