<!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><meta charset="utf-8" /> <title>CSS Flexbox Test: align-self - stretch</title> <link href="http://www.intel.com" rel="author" title="Intel" /> <link href="mailto:shiyoux.tan@intel.com" rel="author" title="Shiyou Tan" /> <link href="http://www.w3.org/TR/css-flexbox-1/#align-items-property" rel="help" title="8.3. Cross-axis Alignment: the 'align-items' and 'align-self' properties" /> <link href="http://www.w3.org/TR/css-flexbox-1/#propdef-align-self" rel="help" /> <link href="reference/ref-filled-green-100px-square.xht" rel="match" /> <meta content="" name="flags" /> <meta content="The 'align-self' property set 'stretch' makes the cross size of the item's margin box as close to the same size as the line as possible" name="assert" /> <style> #test { align-items: center; background-color: red; display: flex; height: 100px; width: 100px; } #test div { align-self: stretch; background-color: green; width: 25px; } </style> </head><body> <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> <div id="test"> <div></div> <div></div> <div></div> <div></div> </div> </body></html>