<!DOCTYPE html> <meta charset="utf-8"> <title>CSS Test Reference</title> <link rel="author" title="Boris Zbarsky" href="mailto:bzbarsky@mit.edu"> <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/"> <style> body > span { border: 3px solid blue } #one { border-right: none; } #four { border-left: none; } </style> <body> <span id="one"> One Two </span> <div>Three</div> <span id="four"> Four </span> </body>