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 Flexbox Layout Building a Layout with Flexbox Creating a Sticky Footer with Flexbox

Aaron Selonke
Aaron Selonke
10,323 Points

Not sure what the ' flex: 1; ' rule on the row div allowed the footer to be pushed to the bottom of the screen??

Why did that affect the footer?

1 Answer

Steven Parker
Steven Parker
231,236 Points

Setting the flex-grow property (which is what the first argument to flex represents) causes the element to expand and take up all available extra space. Since the container's (the body's) height is set to 100vh (100% of the viewport), this guarantees that the footer will get placed at the bottom of the screen.

To illustrate this, you could set the container height to some fixed size instead, and the expansion would fill that explicit height instead of the screen.