.b-ext .collapse-processed>summary {padding-right: .5em;padding-left: .5em;}
.b-ext .collapse-processed>summary:before {float: left;width: 1em;height: 1em;content: "";background: url("/ext/themes/contrib/classy/images/misc/menu-expanded.png") 0 100% no-repeat;}
.b-ext [dir=rtl] .collapse-processed>summary:before {float: right;background-position: 100% 100%;}
.b-ext .collapse-processed:not([open])>summary:before {-ms-transform: rotate(-90deg);-webkit-transform: rotate(-90deg);transform: rotate(-90deg);background-position: 25% 35%;}
.b-ext [dir=rtl] .collapse-processed:not([open])>summary:before {-ms-transform: rotate(90deg);-webkit-transform: rotate(90deg);transform: rotate(90deg);background-position: 75% 35%;}