diff --git a/src/pages/course/assignment-type-head/assignment-type-head.vue b/src/pages/course/assignment-type-head/assignment-type-head.vue
index c713cfd..5c8992b 100644
--- a/src/pages/course/assignment-type-head/assignment-type-head.vue
+++ b/src/pages/course/assignment-type-head/assignment-type-head.vue
@@ -6,9 +6,9 @@
Average: {{type.percent}}%
-
+ :backgroundColor="index % 2 === 0 ? '#ffffff' : '#f7f7f7'" narrow="true">