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CSS Sass Basics (retired) Variables, Mixins, and Extending Selectors Extending Selectors

What is use of %?

Hampton used %bar in second half of movie, instead of .bar, didn't understand the meaning of %?

2 Answers

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,858 Points

Hey Ammar,

The % sign denotes a "Placeholder" instead of an actual selector. It is used in the @extend function. Hampton does a really good job of explaining placeholders and how/why they are used in the video. It starts at 2:40 and goes to 3:45. I recommend maybe rewatching that portion of the video.

Keep Coding! :)

Got it, thanks.

Alex Artigas Perucha
Alex Artigas Perucha
6,146 Points

I understand how @extend would be useful just leaving the main class as it is. In fact, the output is how I've been using regular css when I needed some repeated styles. But what I don't really get is changing it to a placeholder; what would be the difference of using a placeholder @extend and a regular @mixin then?

Alex Artigas Perucha
Alex Artigas Perucha
6,146 Points

Sorry, I posted this question with the video paused right before it explained itself. So it would be something more like a personal choice? Did I get it right?