html, body, #wrapper
{
  height: 100%;
  width: 100%;
}


body > #wrapper
{
  height: auto;
  min-height: 100%;
}


#main
{
  margin: 0 auto;
  width: 100%;
  padding-bottom: 50px;
}


#footer
{
  margin-top: -50px;
  height: 50px;
  clear: both;
}