JSFiddle - React, Tailwind, and code Playground

http://stackoverflow.com/questions/15607873/what-does-the-css-selector-do/

HTML

<p> paragraph </p>

CSS

html { border:10px solid red; }
body { border:10px solid green; }
p    { border:10px solid blue; }
* * { margin:0; padding:20px; }