<!DOCTYPE HTML> <html lang="en"> <head> <title>CSS 2.1 Test Suite: float</title> <link rel="author" title="L. David Baron" href="https://dbaron.org/" /> <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" /> <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#floats"/> <meta name="flags" content="" /> <style type="text/css"> #wrap {width:600px; border:1px solid;} .a {background:lime; color:#fff; width:80%;} .b {float:right; width:18%; background: cyan; color: #000; height:10em;} textarea {width: 100%; height:10em;} </style> <title>test</title> </head> <body> <div id="wrap"> <div class="b"></div> <div class="a"><textarea></textarea></div> </div> </body> </html>