diff --git a/css/glowingbear.css b/css/glowingbear.css
index f1ef251..7f803ee 100644
--- a/css/glowingbear.css
+++ b/css/glowingbear.css
@@ -481,6 +481,18 @@ h2 span, h2 small {
 .panel[data-state=collapsed] {
     border: 0px solid transparent;
 }
+.panel .panel-title:before {
+    display: inline-block;
+    font-size: 22px;
+    line-height: 20px;
+    margin: -3px 5px -3px 0;
+}
+.panel[data-state=active] .panel-title:before {
+    content: "–";
+}
+.panel[data-state=collapsed] .panel-title:before {
+    content: "+";
+}
 
 /* fix for firefox being stupid */
 @-moz-document url-prefix() {