Merge pull request #632 from MajesticString/patch-1

Change `:before` to `::before` becasue they are pseudo elements

Extensions/combined/popup.css

@@ -69,7 +69,8 @@ button:hover {
   border-radius: 0.25rem;
 }
 
-.switch:before, .label-with-hover-tip:before {
+
+.switch::before, .label-with-hover-tip::before {
   content: attr(data-hover);
   visibility: hidden;
   opacity: 0;
@@ -85,7 +86,8 @@ button:hover {
   top: 160%;
 }
 
-.switch:hover:before, .label-with-hover-tip:hover:before {
+
+.switch:hover::before, .label-with-hover-tip:hover::before {
   visibility: visible;
   opacity: 1;
 }
@@ -217,7 +219,7 @@ button:hover {
   border-radius: 34px;
 }
 
-.slider:before {
+.slider::before {
   position: absolute;
   content: "";
   height: 13px;
@@ -233,7 +235,7 @@ input:checked + .slider {
   background: var(--accent);
 }
 
-input:checked + .slider:before {
+input:checked + .slider::before {
   transform: translateX(13px);
   background: var(--primary);
 }