diff --git a/src/platforms/h5/components/app/tabBar.vue b/src/platforms/h5/components/app/tabBar.vue
index aa12265e0044e4bde843d19a1194a443c0a7b02f..00850f9de0cbabd227b972ea69636cbda0eb6d63 100644
--- a/src/platforms/h5/components/app/tabBar.vue
+++ b/src/platforms/h5/components/app/tabBar.vue
@@ -14,7 +14,7 @@
       <div
         v-for="(item,index) in list"
         :key="item.isMidButton ? index : item.pagePath"
-        :style="item.isMidButton ? {flex:'0 0 ' + item.width} : {}"
+        :style="item.isMidButton ? {flex:'0 0 ' + item.width,position:'relative'} : {}"
         class="uni-tabbar__item"
         @click="_switchTab(item,index)"
       >