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 CSS Selectors Selectors - Beyond the Basics DRY CSS

Isn't this approach making html more heavy or it doesn't matter?

I am always confused when I should create a new class for an element. Isn't it bad for structure to have many classes? Is it affecting SEO somehow? Where can I read about it?

1 Answer

The CSS classes have no effect on SEO. Google considers the structure of your tags and content, page navigation, URL structure, load times etc.

I think Google's Style Guide on Github is a good resource for reading about structuring HTML and CSS: https://google.github.io/styleguide/htmlcssguide.html