Font sizing with rem could be avoided
▻http://csswizardry.com/2011/05/font-sizing-with-rem-could-be-avoided
“The main reason, I feel, behind using the 62.5% method is laziness, and that’s a good thing. Good developers are lazy. However that laziness is misguided; it’s actually causing you more work. You have to define font-sizes on all elements rather than just once and letting them inherit and you have to tackle those horrible inheritance issues when an explicitly sized element is placed inside another one.”