The first commented line is your dabblet’s title

dabblet.css

/**
 * The first commented line is your dabblet’s title
 */

ul {
  list-style: none;
  display: box;
  padding: 0;
  box-align: center;
  box-orient: horizontal;
}
li {
  padding: 1em;
  box-flex: 1;
  text-align: center;
  background-color:#dedede;
  margin-right: 1px;
}

li:last-child { margin-right: 0; }

dabblet.html

<ul>
<li>A</li>
<li>BB</li>
<li>CCC</li>
<li>D</li>
<li>EE</li>
</ul>

settings.json

{"view":"split","fontsize":"100","seethrough":"","prefixfree":"1","page":"result"}