I did this. Not sure if it has any bugs yet.
height= calc(100vh - amount of pixels of your header here)
Hey Everyone,
I have been working on page speed issues as well and found that This worked for removing querry strings:
http://www.yourwpexpert.com/remove-query-strings-from-static-resources-wordpress-plugin/
I am still having issues myself with Total Cache not compressing css files, Parallelize downloads across hostnames and Combine external JavaScript. Does anyone have any advice. I have found that on some sites if I remove Total Cache it fixes all page speed but not for the site I am working on now which is
http://chickiepagano.com
Any help would be appreciated. Thank you in advance.