diff --git a/dist/btn/index.wxss b/dist/btn/index.wxss
index e4bf4478..7e945c87 100644
--- a/dist/btn/index.wxss
+++ b/dist/btn/index.wxss
@@ -133,8 +133,9 @@
   opacity: 1 ! important;
 }
 
-/* ::last-child */
-.zan-btn--last-child {
+/* :last-child */
+.zan-btn--last-child,
+.zan-btn:last-child {
   margin-bottom: 0;
   margin-right: 0;
 }
diff --git a/dist/cell/index.wxss b/dist/cell/index.wxss
index 0b64fca8..387480ef 100644
--- a/dist/cell/index.wxss
+++ b/dist/cell/index.wxss
@@ -25,7 +25,8 @@
   color: #666;
 }
 
-.zan-cell--last-child::after {
+.zan-cell--last-child::after,
+.zan-cell:last-child::after {
   display: none;
 }
 
diff --git a/example/btn/index.wxml b/example/btn/index.wxml
index 7006b5c3..4967a4d2 100644
--- a/example/btn/index.wxml
+++ b/example/btn/index.wxml
@@ -8,7 +8,7 @@
       <button class="zan-btn">取消订单</button>
       <button class="zan-btn zan-btn--primary">确认付款</button>
       <button class="zan-btn zan-btn--danger">确认付款</button>
-      <button class="zan-btn zan-btn--warn zan-btn--last-child">确认付款</button>
+      <button class="zan-btn zan-btn--warn">确认付款</button>
     </view>
   </view>
 
@@ -39,7 +39,7 @@
       <button class="zan-btn zan-btn--loading">取消订单</button>
       <button class="zan-btn zan-btn--loading zan-btn--primary">确认付款</button>
       <button class="zan-btn zan-btn--loading zan-btn--danger">确认付款</button>
-      <button class="zan-btn zan-btn--loading zan-btn--warn zan-btn--last-child">确认付款</button>
+      <button class="zan-btn zan-btn--loading zan-btn--warn">确认付款</button>
     </view>
   </view>
 
@@ -49,7 +49,7 @@
       <button class="zan-btn zan-btn--disabled" disabled>取消订单</button>
       <button class="zan-btn zan-btn--disabled zan-btn--primary" disabled>确认付款</button>
       <button class="zan-btn zan-btn--disabled zan-btn--danger" disabled>确认付款</button>
-      <button class="zan-btn zan-btn--disabled zan-btn--warn zan-btn--last-child" disabled>确认付款</button>
+      <button class="zan-btn zan-btn--disabled zan-btn--warn" disabled>确认付款</button>
     </view>
   </view>
 
diff --git a/example/cell/index.wxml b/example/cell/index.wxml
index 6272b0f3..d779392c 100644
--- a/example/cell/index.wxml
+++ b/example/cell/index.wxml
@@ -3,27 +3,27 @@
   <view class="doc-title">CELL</view>
 
   <view class="zan-panel">
-    <view class="zan-cell zan-cell--last-child">
+    <view class="zan-cell">
       <view class="zan-cell__bd">单行列表</view>
     </view>
   </view>
 
   <view class="zan-panel">
-    <view class="zan-cell zan-cell--last-child">
+    <view class="zan-cell">
       <view class="zan-cell__bd">单行列表</view>
       <view class="zan-cell__ft">详细信息</view>
     </view>
   </view>
 
   <view class="zan-panel">
-    <view class="zan-cell zan-cell--last-child zan-cell--access">
+    <view class="zan-cell zan-cell--access">
       <view class="zan-cell__bd">单行列表</view>
       <view class="zan-cell__ft"></view>
     </view>
   </view>
 
   <view class="zan-panel">
-    <view class="zan-cell zan-cell--last-child zan-cell--access">
+    <view class="zan-cell zan-cell--access">
       <view class="zan-cell__bd">单行列表</view>
       <view class="zan-cell__ft">详细信息</view>
     </view>
@@ -36,7 +36,7 @@
     <view class="zan-cell">
       <view class="zan-cell__bd">多行列表</view>
     </view>
-    <view class="zan-cell zan-cell--last-child">
+    <view class="zan-cell">
       <view class="zan-cell__bd">多行列表</view>
     </view>
   </view>
@@ -50,7 +50,7 @@
       <view class="zan-cell__bd">多行列表</view>
       <view class="zan-cell__ft">详细信息</view>
     </view>
-    <view class="zan-cell zan-cell--last-child">
+    <view class="zan-cell">
       <view class="zan-cell__bd">多行列表</view>
       <view class="zan-cell__ft">详细信息</view>
     </view>
@@ -65,7 +65,7 @@
       <view class="zan-cell__bd">多行列表</view>
       <view class="zan-cell__ft"></view>
     </view>
-    <view class="zan-cell zan-cell--access zan-cell--last-child">
+    <view class="zan-cell zan-cell--access">
       <view class="zan-cell__bd">多行列表</view>
       <view class="zan-cell__ft"></view>
     </view>
@@ -80,7 +80,7 @@
       <view class="zan-cell__bd">多行列表</view>
       <view class="zan-cell__ft">详细信息</view>
     </view>
-    <view class="zan-cell zan-cell--access zan-cell--last-child">
+    <view class="zan-cell zan-cell--access">
       <view class="zan-cell__bd">多行列表</view>
       <view class="zan-cell__ft">详细信息</view>
     </view>
diff --git a/package.json b/package.json
new file mode 100644
index 00000000..a735562a
--- /dev/null
+++ b/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "zanui-weapp",
+  "version": "2.0.0",
+  "description": "高颜值、好用、易扩展的小程序 UI 库，Powered by 有赞",
+  "main": "app.js",
+  "directories": {
+    "example": "example"
+  },
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+ssh://git@github.com/youzan/zanui-weapp.git"
+  },
+  "author": "youzan",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/youzan/zanui-weapp/issues"
+  },
+  "homepage": "https://github.com/youzan/zanui-weapp#readme"
+}