diff --git a/srcjs/stendhal.css b/srcjs/stendhal.css
index 20c966cb65f..0e77c444292 100644
--- a/srcjs/stendhal.css
+++ b/srcjs/stendhal.css
@@ -329,13 +329,16 @@ div.logcolR {
 
 .popuptitleclose, .windowtitleclose {
   float: right;
+}
+
+.popuptitleclose {
   border: 1px solid #000000;
   height: 100%;
   width: 1.1em;
   text-align: center;
 }
 
-.popuptitleclose:hover, .windowtitleclose:hover {
+.popuptitleclose:hover {
   background-color: #ffffff2a;
 }
 
diff --git a/srcjs/stendhal.html b/srcjs/stendhal.html
index 198bcb96ed8..ca9bd967613 100644
--- a/srcjs/stendhal.html
+++ b/srcjs/stendhal.html
@@ -150,7 +150,7 @@
 	<template id="window-template">
 		<div class="windowdiv">
 			<div class='windowtitlebar background'>
-				<div class='windowtitleclose'>X</div>
+				<button class="windowtitleclose">X</button>
 				<span class="windowtitle"></span>
 			</div>
 			<div class="windowcontent"></div>