JSFiddle - React, Tailwind, and code Playground

HTML

<!doctype html>
<html lang="en">

  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link href="https://fonts.googleapis.com/css?family=Alfa+Slab+One|Raleway" rel="stylesheet">
    <title>Document</title>
  </head>

  <body>
      <br>
    <div class="test3"></div>

    <div class="test"></div>
    <br>
    <div class="test1"></div>
    <br>
    <div class="test2"></div>

  </body>

</html>

CSS

.test {
  width: 50px;
  height: 50px;
  border-left: 50px solid lime;
  border-right: 50px solid blue;
  border-top: 50px solid red;
  border-bottom: 50px solid magenta;
}

.test1 {
  width: 50px;
  height: 50px;
  border-left: 50px solid transparent;
  border-right: 50px solid transparent;
  border-top: 50px solid red;
  border-bottom: 50px solid transparent;
}


.test2 {
  width: 0;
  height: 0;
  border-left: 50px solid transparent;
  border-right: 50px solid transparent;
  border-top: 50px solid red;
  border-bottom: 50px solid transparent;
}


.test3 {
  border-top: 5px solid green;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: white;  
  animation: spin 0.5s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}