BODY {
  margin: 0;
  font-family: arial, sans-serif;
  color: #000;
}


#header {
  padding: 10;
  background-color: #000;
  color: #fff;
}

#content {
  padding: 10;
}

#footer {
  background-color: #ddd;
  padding: 10;  
  padding-bottom: 100%;
}