The Div container is a Box with pixels, where you group code to have better control of the programing Style # is the ID #theme { background: #fff; color:black; width: 960px; height:160px;} <div id="theme">Calls the properties from that #container</div>
Because anything else is inconsistent across different browsers and problematic http://www.sitepoint.com/blogs/2009/02/11/styling-the-html-and-body-elements/
http://stackoverflow.com/questions/1709 ... tainer-div
# is the ID
#theme { background: #fff; color:black; width: 960px; height:160px;}
<div id="theme">Calls the properties from that #container</div>
Hope that helps! :D