JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="name" class="required" name="name" placeholder="Your text here" />

CSS

input:-moz-placeholder {
  color: darkred;
}
input::-webkit-input-placeholder {
  color: darkred;
}
input:-ms-input-placeholder {
  color: #8D8D8D;
}
input:focus:-moz-placeholder {
  -moz-animation-name: slidein;
  -moz-animation-delay: 0.1s;
  -moz-animation-duration: 0.4s;
  -moz-animation-fill-mode: forwards;
  -moz-animation-timing-function: ease-out;
}
input:focus::-webkit-input-placeholder {
  -webkit-animation-name: slidein;
  -webkit-animation-delay: 0.1s;
  -webkit-animation-duration: 0.4s;
  -webkit-animation-fill-mode: forwards;
  -webkit-animation-timing-function: ease-out;
}
input:focus:-ms-input-placeholder {
  opacity: 0;
}
@-webkit-keyframes slidein {
  from {
    opacity: 1;
    padding-left: 0px;
  }
  to {
    opacity: 0;
    padding-left: 10px;
  }
}
@-moz-keyframes slidein {
  from {
    opacity: 1;
    padding-left: 0px;
    padding-right: 10px;
        }
  to {
    opacity: 0;
    padding-left: 10px;
    padding-right: 0px;
  }
}