// Icon Sizes
 // -------------------------
 
 // makes the font 33% larger relative to the icon container
 .#{$fa-css-prefix}-lg {
   font-size: (4em / 3);
   line-height: (3em / 4);
   vertical-align: -.0667em;
 }
 
 .#{$fa-css-prefix}-xs {
   font-size: .75em;
 }
 
 .#{$fa-css-prefix}-sm {
   font-size: .875em;
 }
 
 @for $i from 1 through 10 {
   .#{$fa-css-prefix}-#{$i}x {
     font-size: $i * 1em;
   }
 }