fix(menu): click menu show background on mobile (#800)

Co-authored-by: yugang.cao <yugang.cao@tusimple.ai>
Co-authored-by: 07akioni <07akioni2@gmail.com>

CHANGELOG.en-US.md

@@ -8,6 +8,8 @@
 
 ### Fixes
 
+- Fix `n-menu` show a blue background when click the menu on mobile phone, closes [#799](https://github.com/TuSimple/naive-ui/issues/799).
+
 ## 2.16.1 (2020-08-06)
 
 ### Feats

CHANGELOG.zh-CN.md

@@ -8,6 +8,8 @@
 
 ### Fixes
 
+- 修复 `n-menu` 在手机端点击菜单的时候出现蓝色背景问题，关闭 [#799](https://github.com/TuSimple/naive-ui/issues/799)
+
 ## 2.16.1 (2020-08-06)
 
 ### Feats

src/menu/src/styles/index.cssr.ts

@@ -33,6 +33,7 @@ export default c([
     box-sizing: border-box;
     font-size: var(--font-size);
     padding-bottom: 6px;
+    -webkit-tap-highlight-color: transparent;
   `, [
     cM('horizontal', {
       display: 'inline-flex',