diff --git a/docs/src/index.js b/docs/src/index.js
index 0a94823a0..92ae9f443 100644
--- a/docs/src/index.js
+++ b/docs/src/index.js
@@ -16,7 +16,7 @@ const router = new VueRouter({
 
 router.beforeEach((route, redirect, next) => {
   if (isMobile) {
-    location.replace('/zanui/vant/mobile' + location.hash);
+    location.replace('/zanui/vant/examples' + location.hash);
   }
   document.title = route.meta.title || document.title;
   next();
diff --git a/packages/vant-css/src/button.css b/packages/vant-css/src/button.css
index ef92beafb..8528a0dd4 100644
--- a/packages/vant-css/src/button.css
+++ b/packages/vant-css/src/button.css
@@ -69,6 +69,10 @@
   }
 
   &--loading {
+    .van-loading {
+      margin: 0 auto;
+    }
+
     .van-button__text {
       display: none;
     }