Best practices writing CSS (Talk by Mark Otto, jQuery UK)

This morning I found this interesting talk about rules you should take in account when writing CSS.

Mark Otto talks about problems with nesting css and gives a better approach. He explains problems with the usage of Sass and the @extend operator and why he is trying to avoid using it.

He also shows why grouping definitions by type are probably a good idea, e.g.: First positioning comes than box model than typography …and so on…

If you are interesting watch his talk (~ 30 minutes): mdo-ular CSS - Mark Otto (jQuery 2015)