Reply To: Create flexbox menu that takes up rest of vertical space of browser window

[[email protected]]

good question. I would think the same thing. How would I make it so that the logo takes up 80% of the browser window, like my example: http://codepen.io/charlieussery/pen/XmNGWG

If I increase the rem on the header it does this: http://codepen.io/charlieussery/pen/WrvyVz