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!
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
Peter Huang
5,426 Pointswhat is " py-3 " in bootstrap?
what is py-3?
<!-- footer -->
<div class="row py-3">
1 Answer

Rick Gleitz
45,931 PointsHi Peter,
In reading the documents, it looks like it sets padding for top and bottom (y being y axis) to 3 rem. I could be wrong though.
Peter Huang
5,426 PointsPeter Huang
5,426 Pointsthis is correct. very familier to me.