<!DOCTYPE html> <html> <link href="support/flexbox.css" rel="stylesheet"> <link rel="author" title="Google Inc." href="http://www.google.com/"> <style> .a { flex: none; width: 30px; background: salmon; } </style> <body> <div class="flexbox justify-content-space-around"> <div class="a"></div> </div> <div class="flexbox"> <b>foo</b><b>bar</b> </div>