diff --git a/packages/zanui-css/src/switch.css b/packages/zanui-css/src/switch.css
index 95af020f1..331581f5b 100644
--- a/packages/zanui-css/src/switch.css
+++ b/packages/zanui-css/src/switch.css
@@ -2,8 +2,8 @@
 
 @component-namespace zan {
   @b switch { 
-    height: 29px;
-    width: 49px;
+    height: 31px;
+    width: 51px;
     display: inline-block;
     position: relative;
     background: #fff;
@@ -15,17 +15,18 @@
     }
 
     @e node {
-      width: 27px;
-      height: 27px;
-      border-radius: 100%;
+      width: 28px;
+      height: 28px;
+      border-radius: 13.5px;
       background-color: #fff;
       position: absolute;
       box-shadow: 0 3px 1px 0 rgba(0, 0, 0, .05), 0 2px 2px 0 rgba(0, 0, 0, .1), 0 3px 3px 0 rgba(0, 0, 0, .05);
-      left: 0;
+      left: 1px;
       top: 1px;
+      z-index: 2;
       &::after {
         @mixin border-retina (top, right, bottom, left), rgba(0, 0, 0, .1);
-        border-radius: 100%;
+        border-radius: 27px;
       }
     }