<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head> <title>CSS Test: writing-mode vertical-lr and vertical-rl</title> <link href="mailto:mitsuteru.s@gmail.com" rel="author" title="Mitsuteru Sawa" /> <link href="mailto:jackalmage@gmail.com" rel="reviewer" title="Tab Atkins Jr." /> <link href="http://www.w3.org/TR/css-writing-modes-3/#writing-mode" rel="help" /> <link href="reference/writing-mode-stretch-001-ref.xht" rel="match" /> <meta content="vertical-writing-mode flex items should stretch" name="assert" /> <style> .container { display: flex; width: 250px; } .vertical-rl { writing-mode: vertical-rl; } .vertical-lr { writing-mode: vertical-lr; } .item { background-color: green; } .square { height: 50px; width: 50px; } .error { position: absolute; background-color: red; height: 100px; width: 250px; z-index: -1; } </style> </head> <body> <p>The test passes if you see a green rectangle and no red.</p> <div class="test"> <div class="error"></div> <div class="container"> <div class="horizontal item"> <div class="square"></div> <div class="square"></div> </div> <div class="vertical-rl item"> <div class="square"></div> <div class="square"></div> </div> <div class="vertical-lr item"> <div class="square"></div> <div class="square"></div> </div> </div> </div> </body></html>