diff --git a/star.js/css/star.css b/star.js/css/star.css
index ec953bc..54765b1 100644
--- a/star.js/css/star.css
+++ b/star.js/css/star.css
@@ -1,11 +1,11 @@
-#blackboard{width:320px;height:180px;background:#333;float:left}
-.starcell{width:20px;height:20px;display:block;float:left;text-align:center}
-.selected{font-weight:bold}
-.wall{background-image:url(../themes/HP48/tex_wall.png);color:#000}
-.ball{background-image:url(../themes/HP48/tex_ball.png);color:#99f}
-.cube{background-image:url(../themes/HP48/tex_cube.png);color:red}
-.ball_selected{background-image:url(../themes/HP48/tex_ball_selected.png);color:#99f}
-.cube_selected{background-image:url(../themes/HP48/tex_cube_selected.png);color:red}
-.gift{background-image:url(../themes/HP48/tex_gift.png);color:yellow}
-.void{background-image:url(../themes/HP48/tex_empty.png);}
-.selected{background:#555}
+.gstar{float:left;width:100%}
+.gstar #blackboard{width:320px;height:180px;background:#333;float:left}
+.gstar #blackboard .starcell{width:20px;height:20px;display:block;float:left;text-align:center}
+.gstar #blackboard .wall{background-image:url(../themes/HP48/tex_wall.png);color:#000}
+.gstar #blackboard .ball{background-image:url(../themes/HP48/tex_ball.png);color:#99f}
+.gstar #blackboard .cube{background-image:url(../themes/HP48/tex_cube.png);color:red}
+.gstar #blackboard .ball_selected{background-image:url(../themes/HP48/tex_ball_selected.png);color:#99f}
+.gstar #blackboard .cube_selected{background-image:url(../themes/HP48/tex_cube_selected.png);color:red}
+.gstar #blackboard .gift{background-image:url(../themes/HP48/tex_gift.png);color:yellow}
+.gstar #blackboard .void{background-image:url(../themes/HP48/tex_empty.png);}
+
diff --git a/star.js/js/star.js b/star.js/js/star.js
index e981cf6..572f9e1 100644
--- a/star.js/js/star.js
+++ b/star.js/js/star.js
@@ -137,7 +137,8 @@ function load_level( levelset, nb ) {
 }
 
 function display_level( state, elt ) {
-	$( elt ).html( '<p id="blackboard">' + format_level( state, false ) + '</p>' );
+	var starhtml = '<div class="gstar"><p id="blackboard">' + format_level( state, false ) + '</p></div>';
+	$( elt ).html( starhtml );
 }