A Pen by Ferncoder.

Custom-polymer-like-input.markdown

Custom polymer like input

A Pen by Ferncoder on CodePen.

License.

index.html

<div class='fern-textInput'>
  <input type=text required />
  <label class='fern-textInput-label'>Name</label>  
  <span class='fern-textInput-validity'></span>
  <span class='fern-textInput-loader'></span>
</div>

style.css

body {
  background-color: rgb(114, 148, 191);
}

.fern-textInput {
  width: 150px;
  height: 50px;
  margin: 60px auto;
  position: relative;
}

.fern-textInput input {
  display: block;
  position: absolute;
  top: 20px; /* make it go to the bottom */
  width: 150px;
  padding: 0px;
  padding-left: 5px;
  border: none;
  background: transparent;
  height: 30px;
  z-index: 5;
}

.fern-textInput .fern-textInput-loader {
  position: absolute;
  width: 150px;
  height: 3px;
  top: 47px;
  opacity: 0.5;
  background-color: #FAFAFA;
  z-index: 2;
  transition: all ease 0.3s;    
}

.fern-textInput .fern-textInput-label {
  position: absolute;
  top: 23px;
  left: 15px;
  font-size: 14px;
  tansform: translateY(-50%);
  opacity: 0.5;
  font-weight: 800;
  z-index: 3;
  transition: all ease 0.3s;    
}

.fern-textInput .fern-textInput-validity {
  position: absolute;
  left: 50%;
  top: 47px;
  height: 3px;
  width: 0px;
  background-color: #555555;
  z-index: 6;
  transition: all ease 0.3s;
}

.fern-textInput input:focus ~ .fern-textInput-label, .fern-textInput input:valid ~ .fern-textInput-label {
  top: 5px;
  opacity: 1;
  left: 5px;
  font-size: 12px;
}

.fern-textInput input:focus ~ .fern-textInput-loader, .fern-textInput input:valid ~ .fern-textInput-loader {
  height: 30px;
  top: 20px;
}

.fern-textInput input:focus ~ .fern-textInput-validity, .fern-textInput input:valid ~ .fern-textInput-validity {
  width: 150px;
  left: 0px;
}