JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<head>
    <link rel="stylesheet" type="text/css" href="normalize.css">
<style>
body {
  margin: 0;
  padding: 0;
}
.section {
position: relative;
width: 100vw;
height: 100vh;
background-color: red;

}

    .section.second {
        background-color: green;
    }
</style>


</head>
<body>

<div class="section">ASD1</div>

<div class="section second">ASD2</div>



</body>
</html>