Tweak tabs style at card top

components/tabs/demo/card-top.md

@@ -20,21 +20,27 @@ const TabPane = Tabs.TabPane;
 ReactDOM.render(
   <div className="card-container">
     <Tabs type="card">
-      <TabPane tab="Tab 1" key="1">Content of Tab Pane 1</TabPane>
+      <TabPane tab="Tab Title 1" key="1">
-      <TabPane tab="Tab 2" key="2">Content of Tab Pane 2</TabPane>
+        <p>Content of Tab Pane 1</p>
-      <TabPane tab="Tab 3" key="3">Content of Tab Pane 3</TabPane>
+        <p>Content of Tab Pane 1</p>
+        <p>Content of Tab Pane 1</p>
+      </TabPane>
+      <TabPane tab="Tab Title 2" key="2">
+        <p>Content of Tab Pane 2</p>
+        <p>Content of Tab Pane 2</p>
+        <p>Content of Tab Pane 2</p>
+      </TabPane>
+      <TabPane tab="Tab Title 3" key="3">
+        <p>Content of Tab Pane 3</p>
+        <p>Content of Tab Pane 3</p>
+        <p>Content of Tab Pane 3</p>
+      </TabPane>
     </Tabs>
   </div>
 , mountNode);
 ````
 
 ````css
-#components-tabs-demo-card-top .code-box-demo {
-  background: #ececec;
-  overflow: hidden;
-  padding: 24px;
-}
-
 .card-container > .ant-tabs-card > .ant-tabs-content {
   height: 120px;
   margin-top: -16px;
@@ -45,11 +51,25 @@ ReactDOM.render(
   padding: 16px;
 }
 
+.card-container > .ant-tabs-card > .ant-tabs-bar {
+  border-color: #fff;
+}
+
 .card-container > .ant-tabs-card > .ant-tabs-bar .ant-tabs-tab {
   border-color: transparent;
+  background: transparent;
 }
 
 .card-container > .ant-tabs-card > .ant-tabs-bar .ant-tabs-tab-active {
   border-color: #fff;
+  background: #fff;
 }
 ````
+
+<style>
+#components-tabs-demo-card-top .code-box-demo {
+  background: #F5F5F5;
+  overflow: hidden;
+  padding: 24px;
+}
+</style>

components/tabs/index.en-US.md

@@ -2,6 +2,7 @@
 category: Components
 type: Data Display
 title: Tabs
+cols: 1
 ---
 
 Tabs make it easy to switch between different views.

components/tabs/index.zh-CN.md

@@ -3,6 +3,7 @@ category: Components
 subtitle: 标签页
 type: Data Display
 title: Tabs
+cols: 1
 ---
 
 选项卡切换组件。

components/tabs/style/card-style.less

@@ -25,7 +25,6 @@
   }
   &&-card > &-bar &-tab-active {
     background: @component-background;
-    transform: translateZ(0);
     border-color: @border-color-base;
     color: @primary-color;
     padding-bottom: 5px;