JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://getbootstrap.com/dist/css/bootstrap.css">
<form action="#" method="post" id="step-form" class="steps-form">
  <div class="row">
    <div class="col-xs-12">
      <input type="text" name="" id="" class="form-control" placeholder="Name">
    </div>
    <div class="col-xs-12">
      <textarea name="" id="" cols="30" rows="10" class="form-control" placeholder="Message"></textarea>
    </div>
    <div class="col-xs-12">
      <select name="" id="" class="form-control">
        <option value="" selected="selected" disabed="disabled">Item</option>
      </select>
    </div>
  </div>
</form>

CSS

body {
  background-color: #119251;
}

form {
  background-color: #fff;
  width: 500px;
  margin:75px auto;
  top: 50px;
  left: 0px;
  padding: 25px;
}

.steps-form .form-control {
  margin-bottom: 15px;
  -webkit-animation: blink 0.5s;
  -moz-animation: blink 0.5s;
  -o-animation: blink 0.5s;
  animation: blink 0.5s;
  -webkit-animation-iteration-count: 3;
  -moz-animation-iteration-count: 3;
  -o-animation-iteration-count: 3;
  animation-iteration-count: 3;
  -webkit-animation-delay: 1s;
  -moz-animation-delay: 1s;
  -o-animation-delay: 1s;
  animation-delay: 1s;
}

@-webkit-keyframes blink {
  0% {
    background-color: #fff;
    border-color: #ccc;
  }
  50% {
    background-color: #d2d2d2;
    border-color: #000;
  }
  100% {
    background-color: #fff;
    border-color: #ccc;
  }
}

@-moz-keyframes blink {
  0% {
    background-color: #fff;
    border-color: #ccc;
  }
  50% {
    background-color: #d2d2d2;
    border-color: #000;
  }
  100% {
    background-color: #fff;
    border-color: #ccc;
  }
}

@-o-keyframes blink {
  0% {
    background-color: #fff;
    border-color: #ccc;
  }
  50% {
    background-color: #d2d2d2;
    border-color: #000;
  }
  100% {
    background-color: #fff;
    border-color: #ccc;
  }
}

@keyframes blink {
  0% {
    background-color: #fff;
    border-color: #ccc;
  }
  50% {
    background-color: #d2d2d2;
    border-color: #000;
  }
  100% {
    background-color: #fff;
    border-color: #ccc;
  }
}