I don't want to rotate it - it's not 1998! Can I purely flip this element when the is-expanded class is added?
.resources__icon {
@include icon('arrow-down-white', 28, 18);
}
.is-expanded.resources__icon {
-webkit-transform: rotate(180deg);
-moz-transform: rotate(180deg);
-o-transform: rotate(180deg);
-ms-transform: rotate(180deg);
transform: rotate(180deg);
}