Contains the following fragment:
@media all and (min-width:768px){.ext-qs-loader-bar,.ext-quick-survey-panel{margin-left:1.4em;width:300px;clear:right;float:right}.infobox,.last-modified-bar,h2{clear:both}}"
This forces h2 AND the infobox to clear, which is NOT as expected. See for instance:
https://en.wikipedia.org/wiki/Cliff_Robertson
https://en.wikipedia.org/wiki/Edmond_Hamilton
Please remove the clear:both from both the infobox and the h2 and find a different way to achieve the desired result.