<!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <!DOCTYPE html> <html> <head> <title>tall background-size: auto; for omitted-width-omitted-height-viewbox.svg</title> <link rel="author" title="Jeff Walden" href="http://whereswalden.com/" /> <link rel="help" href="http://www.w3.org/TR/css3-background/#the-background-size" /> <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#IntrinsicSizing" /> <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute" /> <link rel="help" href="http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute" /> <meta name="flags" content="svg" /> <style type="text/css"> div { width: 256px; height: 768px; } #outer { border: 1px solid black; } #inner { background-image: url(omitted-width-omitted-height-viewbox.svg); background-repeat: no-repeat; background-size: auto; } </style> </head> <body> <div id="outer"><div id="inner"></div></div> </body> </html>