Test: width:auto; height:70px; width="0" height="10"
This testcase checks that the intrinsic width will be taken as the used
width when the CSS 'width' property is set to 'auto', the 'height' property
is set to some other value, and there is no intrinsic ratio. Since the
'width' attribute is set to zero, nothing should be displayed. You should
not see any red when viewing this file.