title: Make body have 100% of the browser height
body: <p>I want to make <code>body</code> have 100% of the browser height. Can I do that using CSS?</p>
  <p>I tried setting <code>height: 100%</code>, but it doesn't work.</p>
  <p>I want to set a background color for a page to fill the entire browser window, but if the page has little content I get a ugly white bar at the bottom.</p>