Chrome’s about to change how it handles <link rel="stylesheet">. This is big news and Jake’s got the rundown:
The plan is for each
<link rel="stylesheet">to block rendering of subsequent content while the stylesheet loads, but allow the rendering of content before it. The stylesheets load in parallel, but they apply in series. This makes<link rel="stylesheet">behave similar to<script src="…"></script>.
It’ll take some getting used to sprinkling <link rel="stylesheet"> throughout a page’s <body>, but the performance benefits (coupled with HTTP/2) will be worth it.