JSFiddle - React, Tailwind, and code Playground

HTML

<body ng-app="loaderApp">
  <div ng-controller="loaderCtrl">
    <h1 ng-bind="title"></h1>
    First Loader <input type="checkbox" ng-model="loader1">{{loader1}}
    <br>
    Second Loader <input type="checkbox" ng-model="loader2">{{loader2}}
    <div>
      <loader show="{{loader1}}" size="sm"></loader>
    </div>
    <div>
      <loader show="{{loader2}}" size ="md"></loader>
    </div>
     <div>
      <loader show="{{loader2}}" size ="lg"></loader>
    </div>
  </div>
</body>
<!-- Malcolm -->

CSS

.loader,
.loader:before,
.loader:after {
  background: #000000;
  -webkit-animation: load1 1s infinite ease-in-out;
  animation: load1 1s infinite ease-in-out;
  width: 1em;
  height: 4em;
}
.loader {
  color: #000000;
  text-indent: -9999em;
  margin: 20px auto;
  position: relative;
  font-size: 11px;
  -webkit-transform: translateZ(0);
  -ms-transform: translateZ(0);
  transform: translateZ(0);
  -webkit-animation-delay: -0.16s;
  animation-delay: -0.16s;
}
.loader:before,
.loader:after {
  position: absolute;
  top: 0;
  content: '';
}
.loader:before {
  left: -1.5em;
  -webkit-animation-delay: -0.32s;
  animation-delay: -0.32s;
}
.loader:after {
  left: 1.5em;
}
@-webkit-keyframes load1 {
  0%,
  80%,
  100% {
    box-shadow: 0 0;
    height: 4em;
  }
  40% {
    box-shadow: 0 -2em;
    height: 5em;
  }
}
@keyframes load1 {
  0%,
  80%,
  100% {
    box-shadow: 0 0;
    height: 4em;
  }
  40% {
    box-shadow: 0 -2em;
    height: 5em;
  }
}
.loader.sm{
  font-size: 5px;
}
.loader.md{
  font-size: 8px;
}
.loader.lg{
  font-size: 15px;
}
.loader-container{
    width: 100px;
    height: 100px;
    float: left;
    position: relative;
    overflow: hidden;
}

JavaScript

var app = angular.module('loaderApp',[]);

app.directive('loader',function(){
	return {
  	restrict:'EA',
    scope:{
    	show : '@',
      size : '@'
    },
    template : '<div class="loader-container"><div class="loader" ng-if="show" ng-class="size"></div></div>'
  }
})


app.controller('loaderCtrl',function($scope){
    $scope.title = "loader";
});