JSFiddle - React, Tailwind, and code Playground

by jeremyblalock

HTML

<div class="input">
  <input name="email" type="text" required="">
  <label for="email">Email</label>
</div>

CSS

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Helvetica Neue', Helvetica, sans-serif;
  font-size: 20px;
  padding: 30px;
}

.input {
  position: relative;
}

.input label, .input input {
  padding: 20px 0 15px;
  display: block;
  width: 100%;
}

.input label {
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
  color: #0af;
  transition: all 0.1s;
  transform-origin: 0 0;
}

.input input {
  font: inherit;
  border: none;
  background: transparent;
  border-bottom: 1px solid #0af;
  outline: none !important;
  position: relative;
  z-index: 2;
}

.input input:valid + label, .input input:focus + label {
  transform: scale(0.6) translateY(-20px);
}