HTML/CSS set div to height of sibling

Question

I have 2 div\'s contained in a third. One of the contained div\'s is floated left, the other floated right. I would like the 2 sibling div\'s to always be at the same heig

Answer 1

In order to do this with HTML and CSS using divs, you will need to use JavaScript to check their heights, then change one to match.

If you don't want to use JavaScript, and your site has a particular design, in your third div, you can give it a repeat-y background image that will expand as one of the two divs does. So for example, say your two divs have a blue background, and your third containing div has a grey background. Remove the blue background and create an image that is repeatable using the blue and grey, and place that image for the third div. That way, as it expands, it will appear the two divs are as well.