diff --git a/lib/mediawiki.less b/lib/mediawiki.less
index 51dac9c797..4d4aa849d0 100644
--- a/lib/mediawiki.less
+++ b/lib/mediawiki.less
@@ -253,13 +253,20 @@
       }
     }
 
-    .mw-parser-output {
-      a.external {
+    :where(.mw-parser-output a) {
+      &.external {
         @svg: escape(
           '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12"><path fill="@{accent}" d="M6 1h5v5L8.86 3.85 4.7 8 4 7.3l4.15-4.16zM2 3h2v1H2v6h6V8h1v2a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1"/></svg>'
         );
         background-image: url("data:image/svg+xml,@{svg}");
       }
+
+      &.extiw {
+        @svg: escape(
+          '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12"><path fill="@{accent}" d="M5.002 1.01h7v7l-2-2-3 2v-1l3-2.25 1 1V2.01h-3.75l1 1-2.25 3h-1l2-3z"/><path fill="@{accent}" d="M7.002 3.01h-5v8h8v-5h-1v4h-6v-6h4z"/><path fill="@{accent}" d="M4.082 5.51c0-.621.621-.621.621-.621q2.796.932 3.728 3.728s0 .621-.62.621C6.566 7.374 5.945 6.753 4.081 5.51z"/></svg>'
+        );
+        background-image: url("data:image/svg+xml,@{svg}");
+      }
     }
 
     /* Math equations */