<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>CSS Writing Modes Test: 'float: right', 'float: left' and 'clear: both' in 'vertical-lr' block formating context (intermediate)</title> <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#vertical-layout" title="7.1 Principles of Layout in Vertical Writing Modes"> <link rel="match" href="reference/ref-filled-green-100px-square.htm"> <meta content="image" name="flags"> <meta content="This test checks that a block container box which has floats will not extend its logical height (it will appear to not be aware of its floats) unless it has a clearing block. This test is important for CSS columnar layout page based on floats." name="assert"> <style type="text/css"> div#wrapper { background: red url("support/pattern-gr-gr-100x100.png"); font-size: 3.125em; /* computes to 50px */ height: 2em; /* computes to 100px */ width: 2em; /* computes to 100px */ writing-mode: vertical-lr; } div#container { border-right: green solid 1em; width: auto; /* Very important: we want div#container to be able to shrink-wrap */ } div#floated-left { float: left; height: 50%; /* computes to 50px */ width: 1em; /* computes to 50px */ } div#floated-right { float: right; height: 50%; /* computes to 50px */ width: 1em; /* computes to 50px */ } div#clearing { clear: both; } </style> </head> <body> <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> <div id="wrapper"> <div id="container"> <div id="floated-right"></div> <div id="clearing"></div> <div id="floated-left"></div> </div> </div> </body> </html>