.bg-filter:before{background:inherit}.bg-filter.bg-filter-darken-1:before{filter:brightness(.9);-webkit-filter:brightness(.9)}.bg-filter.bg-filter-darken:before{filter:brightness(.8);-webkit-filter:brightness(.8)}.bg-filter.bg-filter-darken-3:before{filter:brightness(.7);-webkit-filter:brightness(.7)}.bg-filter.bg-filter-darken-4:before{filter:brightness(.6);-webkit-filter:brightness(.6)}.bg-filter.bg-filter-darken-5:before{filter:brightness(.5);-webkit-filter:brightness(.5)}.bg-filter.bg-filter-darken-6:before{filter:brightness(.4);-webkit-filter:brightness(.4)}.bg-filter.bg-filter-darken-7:before{filter:brightness(.3);-webkit-filter:brightness(.3)}.bg-filter.bg-filter-darken-8:before{filter:brightness(.2);-webkit-filter:brightness(.2)}.bg-filter.bg-filter-darken-9:before{filter:brightness(.1);-webkit-filter:brightness(.1)}