diff --git a/12/style.css b/12/style.css
index e4b6795..ce598c6 100644
--- a/12/style.css
+++ b/12/style.css
@@ -521,13 +521,22 @@ iframe.hidden {
 }
 
 #TOC_icon {
-color: white;
+	color: white;
+	border: 3px white solid;
+  	width: 100px;
+  	height: 100px;
 }
 #clock_icon {
-color: white;
+    color: white;
+    border: 3px white solid;
+    width: 100px;
+  	height: 100px;
 }
 #resources_icon {
-color: white;
+    color: white;
+    border: 3px white solid;
+  	width: 100px;
+  	height: 100px;
 }
 
 #TOC_icon:hover {