chrome/button.css

   1 #custom-button-1,
   2 #wrapper-custom-button-1
   3 {list-style-image: url("chrome://custombutton/content/button-1.png");}
   4
   5 /* common style for all custom buttons */
   6 .custombutton
   7 {-moz-image-region: rect( 0px 24px 24px  0px);}
   8
   9 .custombutton:hover
  10 {-moz-image-region: rect(24px 24px 48px  0px);}
  11
  12 [iconsize="small"] .custombutton
  13 {-moz-image-region: rect( 0px 40px 16px 24px);}
  14
  15 [iconsize="small"] .custombutton:hover
  16 {-moz-image-region: rect(24px 40px 40px 24px);}
  17