+#resume[checked=true] {
+/* background: none; */
+ list-style-image: url("chrome://browser/skin/devtools/debugger-play.png");
+ -moz-image-region: rect(0px, 16px, 16px, 0px);
+}
+
+#resume[checked=true]:hover {
+ -moz-image-region: rect(0px, 32px, 16px, 16px);
+}
+
+@media (min-resolution: 2dppx) {
+ #resume {
+ list-style-image: url(debugger-pause@2x.png);
+ -moz-image-region: rect(0px, 32px, 32px, 0px);
+ }
+
+ #resume:hover {
+ -moz-image-region: rect(0px, 64px, 32px, 32px);
+ }
+
+ #resume[checked=true] {
+ list-style-image: url(debugger-play@2x.png);
+ -moz-image-region: rect(0px, 32px, 32px, 0);
+ }
+
+ #resume[checked=true]:hover {
+ -moz-image-region: rect(0px, 64px, 32px, 32px);
+ }
+}
+
+#resume ~ toolbarbutton {
+/* transition: opacity 0.15s ease-in-out; */
+}
+
+#resume:not([checked]) ~ toolbarbutton {
+/* opacity: 0.5; */
+}
+