diff --git a/src/sao.less b/src/sao.less
index 5359bd74d2..382423e455 100644
--- a/src/sao.less
+++ b/src/sao.less
@@ -7,6 +7,11 @@
     }
 }
 
+.nav-tabs > li .close {
+    margin: -2px 0 0 10px;
+    font-size: 18px;
+}
+
 .treeview {
     & > table.tree {
         width: 100%;