Fix dl.switch indentation

Author: twiss

spec/webcrypto.css

@@ -218,6 +218,12 @@ dl.switch > dt {
   text-indent: -1.5em;
   margin-top: 1em;
 }
+@supports (list-style: "\21AA  ") {
+  dl.switch > dt {
+    margin-left: 0 !important;
+    text-indent: 0 !important;
+  }
+}
 dl.switch > dt + dt {
   margin-top: 0;
 }