diff --git a/miniprogram/component/navigation-bar/navigation-bar.wxss b/miniprogram/component/navigation-bar/navigation-bar.wxss
index 85bc8bdd..c2b2c339 100644
--- a/miniprogram/component/navigation-bar/navigation-bar.wxss
+++ b/miniprogram/component/navigation-bar/navigation-bar.wxss
@@ -38,7 +38,6 @@
   width: 12px;
   height: 24px;
   background: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='24' viewBox='0 0 12 24'%3E %3Cpath fill-opacity='.9' fill-rule='evenodd' d='M10 19.438L8.955 20.5l-7.666-7.79a1.02 1.02 0 0 1 0-1.42L8.955 3.5 10 4.563 2.682 12 10 19.438z'/%3E%3C/svg%3E") no-repeat 50% 50%;
-  background-color: currentColor;
   background-size: cover;
 }