Stylesfactory
Well-known member
Here are some examples:
width: 3.5555555556em;
height: 3.5555555556em;
background-position: 0em 0em;
background-position: 0em -3.55555em;
background-position: -8.3333333333em 0
width: 3.5555555556em;
height: 3.5555555556em;
background-position: 0em 0em;
background-position: 0em -3.55555em;
background-position: -8.3333333333em 0