<!DOCTYPE html> <html><head> <title>CSS Test: flex flow direction</title> <link href="http://www.github.com/sskyy" rel="author" title="houzhenyu"> <link href="http://www.w3.org/TR/css-flexbox-1/#flex-direction" rel="help"> <link href="reference/flex-direction-with-element-insert.htm" rel="match"> <meta content="The flex items inserted by script shuould follow the right direction what the flex-direction property directives." name="assert"> <style> .flex-container{ display: flex; margin:20px; background: #333; } .flex-item{ width:50px; height:50px; margin:20px; background: #eee; line-height: 50px; text-align: center; } .flex-container.flex-direction-row{ flex-direction : row; } .flex-container.flex-direction-row-reverse{ flex-direction : row-reverse; } .flex-container.flex-direction-column{ flex-direction : column; } .flex-container.flex-direction-column-reverse{ flex-direction : column-reverse; } </style> </head> <body> <h1>flex-direction:row</h1> <div class="flex-container flex-direction-row" id="flex-direction-row"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div> <h1>flex-direction:row-reverse</h1> <div class="flex-container flex-direction-row-reverse" id="flex-direction-row-reverse"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div> <h1>flex-direction:column</h1> <div class="flex-container flex-direction-column" id="flex-direction-column"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div> <h1>flex-direction:column-reverse</h1> <div class="flex-container flex-direction-column-reverse" id="flex-direction-column-reverse"><div class="flex-item">1</div><div class="flex-item">2</div><div class="flex-item">3</div></div> <script> var ids = ['flex-direction-row', 'flex-direction-row-reverse', 'flex-direction-column', 'flex-direction-column-reverse']; for( var i in ids ){ var new_element = document.createElement("div") new_element.className="flex-item"; new_element.innerHTML="new"; var container = document.getElementById( ids[i] ); container.appendChild( new_element ); } </script> </body></html>