Unify Join URL interactivity

output/styles2.css

@@ -51,23 +51,18 @@ header {
 	font-size: .8em;
 }
 
-.join_url.nojs_mobile {
+.join_url {
-	display: none;
+	/* Apply margin against copy button or link. */
-}
+	/* URL now guaranteed to have interactive element to right when present. */
-
-/* Apply margin against copy button. */
-html.js .join_url {
 	margin-right: 1em;
 }
 
-@media (max-width: 850px) {
-	.join_url {
-		display: none;
-	}
 
-	/* Show backup link only when button is not available. */
+@media (max-width: 950px) {
-	html:not(.js) .join_url.nojs_mobile {
+	/* Only current width breakpoint; */
-		display: inline;
+	/* Would follow w4 and precede w6. */
+	.show-from-w5 {
+		display: none;
 	}
 }
 

sites/+components/tbl_communities.php

@@ -62,10 +62,9 @@
 		</td>
 		<td class="td_join_url">
 			<div class="join_url_container">
-				<a class="join_url" href="<?=$room->join_link?>"
+				<a class="join_url show-from-w5" title="<?=$room->join_link?>"
-					title="<?=$room->join_link?>"
 					><?=truncate($room->join_link, 32)?></a>
-				<a class="join_url nojs_mobile" href="<?=$room->join_link?>"
+				<a class="noscript" href="<?=$room->join_link?>"
 					>Copy link</a>
 			</div>
 		</td>