Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

CSS CSS Layout Basics Page Layout with the Float Property The Float Challenge Solution

Wayne Collier
Wayne Collier
7,328 Points

Why does this work but not this?

Why does this work: .col { float: right; padding-left: 1em; padding-right: 1em; } .primary { width: 65%; } .secondary { width: 35%; }

But this doesn't: .primary col { float: right; padding-left: 1em; padding-right: 1em; width: 65%; }

.secondary col { float: right; padding-left: 1em; padding-right: 1em; width: 35%; }

1 Answer

It doesn't work because 65% + 35% + 2em is more than 100%. Use the calc function and instead of 65% write calc(65% - 1em) and instead of 35% write calc(35% - 1em)

Hope this helps