Poptip & Tooltip add transfer prop

Using transfer prop, the dom will be transfered to body.

examples/components/test.vue

@@ -1,40 +1,10 @@
 <template>
-    <Select v-model="model1" style="width:200px">
-        <Option v-for="item in cityList" :value="item.value" :key="item.value">{{ item.label }}</Option>
-    </Select>
+    <Poptip trigger="hover" title="提示标题" :transfer="true" placement="left" content="提示内容">
+        <Button>hover 激活</Button>
+    </Poptip>
 </template>
 <script>
     export default {
-        data () {
-            return {
-                cityList: [
-                    {
-                        value: 'beijing',
-                        label: '北京市'
-                    },
-                    {
-                        value: 'shanghai',
-                        label: '上海市'
-                    },
-                    {
-                        value: 'shenzhen',
-                        label: '深圳市'
-                    },
-                    {
-                        value: 'hangzhou',
-                        label: '杭州市'
-                    },
-                    {
-                        value: 'nanjing',
-                        label: '南京市'
-                    },
-                    {
-                        value: 'chongqing',
-                        label: '重庆市'
-                    }
-                ],
-                model1: ''
-            }
-        }
+
     }
-</script>
+</script>