css missing from "smaller font if overflow"

src/components/Article.vue

@@ -326,7 +326,8 @@ ul li.definition {
       width: 100%;
     -webkit-line-clamp: 3;
     -webkit-box-orient: vertical;
-    overflow: hidden;  
+    overflow-y: hidden;  
+    overflow-x: auto;
 }
 
 .header {