[Android] Fixed UI styling regression.

src/ui/popup.css

@@ -129,6 +129,7 @@ html:not(.mobile) #scrollable {
 .hider-close, .reveal {
   -webkit-appearance: none;
   -moz-appearance: none;
+  appearance: none;
   border: none;
   border-radius: 0;
   background: transparent;

src/ui/ui.css

@@ -27,7 +27,10 @@ fieldset > .opt-group ~ .opt-group {
   align-items: baseline;
 }
 
-.opt-group input[type="radio"] ~ label { margin-right: 1em};
+.opt-group input[type="radio"] ~ label
+{
+  margin-right: 1em;
+}
 
 @media (max-width: 550px) {