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

HTML

Posted by Andrew Lin
Andrew Lin
6,951 Points

How does adding d-sm-block set the the image to not show in small but other screen sizes?

This is in the very end the of the video.

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Many of the classes used by Bootstrap activate media queries implemented in CSS to control behavior for different sized windows.

If you really want to see the technical details, you can actually read the CSS file itself (but it's rather complex!).