CSS ClipMethod (.Visuallyhidden)

.visuallyhidden { 
  position: absolute;
  clip: rect(0 0 0 0); 
  border: 0;
  width: 1px; 
  height: 1px; 
  margin: -1px; 
  overflow: hidden; 
  padding: 0; 
}
Smooth Jazzin'