diff --git a/index.html b/index.html
index 4724d29..381823f 100644
--- a/index.html
+++ b/index.html
@@ -46,7 +46,8 @@
         <a href="/rss">Subscribe to all new recommendations via RSS</a>, or<br>
         <form method="get" action="/rss">
           <label for="tags_rss" style="width: auto;">subscribe only to these tags:</label>
-          <input type="text" id="tags_rss" name="tags[]" placeholder="tag1,tag2,tag3" style="width: 42ch;">
+          <input type="text" id="tags_rss" name="tags[]" placeholder="tag1,tag2,tag3"
+            style="width: 42ch;">
           <input type="submit">
         </form>
       </li>