.container { width: 98%; margin: 10px auto; background-color: #fff; }

.footer  { clear: both; margin: 0; padding: .5em; color: #333; background-color: #ddd; border-top: 1px solid gray; }
 
.header { background-color: #ddd; }

.middleWindow
{
 padding: 1em;

}