diff --git a/less/category.less b/less/category.less
index 9b008aa..9a50a09 100644
--- a/less/category.less
+++ b/less/category.less
@@ -50,7 +50,6 @@
 					.transition(.2s ease-in-out opacity);
 				}
 
-				width: 50px;
 				float: left;
 			}
 
diff --git a/less/topic.less b/less/topic.less
index 64d7c45..b9e0f43 100644
--- a/less/topic.less
+++ b/less/topic.less
@@ -326,6 +326,7 @@
 		background-color: #eee;
 		bottom: 0px;
 		left: 0px;
+		z-index: 100;
 
 		.wrapper {
 			padding: 5px 0px 5px 0px;