A CodePen by Micah Godbolt. Responsive Equal Height Divs  - This pattern is a fork of a CSS Tricks Post

To adapt this pattern for responsive use I placed it into a function and called it each time the window was resized. One note is that you must reset the div heights before you take a new measurement.

Pros

The Equal Height Rows Designers Crave - If a desiger uses a box, those boxes better line up or they lose their Adobe license. Really!

Seperate heights for each row - Each row's height is calculated seperately, which works better for multi row layouts.

Light - This is a pretty short script and could be omitted from your mobile, one column layout.