Semantic UI sandbox

by needlethread

HTML

<link rel="stylesheet" href="https://semantic-ui.com/dist/semantic.css">
<script src="https://semantic-ui.com/dist/semantic.js"></script>
<h2 class="ui dividing header">
  Fork this JSFiddle
  <div class="sub header">By hitting the button in the menu above</div>
</h2>

<p>Then delete this HTML and add your frfffrfrown in this box</p>

CSS

body {
  padding: 1em;
  background-color: yellow;
}

JavaScript

var a = 1;
a = a + 1;