JSFiddle - React, Tailwind, and code Playground

by dezignas

HTML

<div class='page'>
    <div class='menu'>
      <span>one</span>
      <span>two</span>
      <span>three</span>
    </div>
  </div>

CSS

body * { border: 1px solid black; background-color: #999999; overflow: hidden; }
      
page>menu {
    width: 100%;
    float: left;
    margin: 0px;
    padding: 0px;
}

span { float:left; display: block; width: 33.33%; margin: 0px; padding: 0; border: none; 
overflow:hidden;}
      .page { margin: 10px; background-color: #0000ff; }
      .menu { margin: 5px; background-color: #00ffff; }