LESS Mixins!

I find that I often use LESS  If you do front end web development, and don't use LESS you are missing out.  In short, it let's you nest CSS, create CSS functions, gives you CSS variables, and do math in your CSS (and much more).

It can turn this:
Into this:

Now, that might not look great right now, but it will save you time in the long run. I will probably write a post at a later point about the magic of LESS, however for now, I figured I'd just post a few of my favorite mixins (think of them like functions) that I use on the daily.

As I do more, I'll add them , just look for the LESS tags