Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

CSS

Attila György
Attila György
7,716 Points
Posted by Attila György
Attila György
7,716 Points

CSS selectors

Why can't we just always use substring matching attribute selectors or structural pseudo-classes instead of id's and classes?

1 Answer

Steven Parker
Steven Parker
230,274 Points
Steven Parker
Steven Parker
230,274 Points

Most of the time, it will be your choice as to what kind of selector you want to use. But it's always good to know what choices you have, and ID and class selectors are both more likely to give improved performance.

As you continue through the courses, you'll also find that class selectors can be used in ways that make them particularly handy, plus they tend to make your code easier to read and maintain.