two div have same height

How to set the height of a div to 100% using CSS. I was creating blurb’s which should have the same height irrespective of the change in the screen size. evissi :: coconut water How to make HTML table expand on click using JavaScript ? How to animate div width and height on mouse hover using jQuery ? It's an example of what I'm saying in my comment. But again this only works if you'd want to have 3 columns all be equal width. For that same long time they were and maybe still are the deFacto method for creating columns of equal height. We can set the size as maximum one’s height for the both divisions. How to set the default value for an HTML