Which is the fastest way to load the CSS
By using a link ref in the header or by using an @import in the CSS file.
e.g.
<link rel='stylesheet' type='text/css' href='//fonts.googleapis.com/css?family=Gudea:400,700'>
Or
@import url("//fonts.googleapis.com/css?family=Gudea:400,700");
I have run some speed tests but nothing is conclusive. But including the link this file is seen as render blocking, so even though the link separate file should be faster I can't find out if it actually is..