Making a div 100% height - A side note

This has nothing to do with Rails. It has everything to do with CSS. If you have any situation where you want a div to span across the vertical height, here is the solution:

   1: html, body {

   2:     height: 100%; /*key point*/

   3: }

   4:  

   5: #longdiv {

   6:     height: 100%;

   7: }

This should work like a charm in all the browsers. If you have your div wrapped with another div, then don't forget to set the height of the wrapper div too!