diff --git a/src/layout/components/AppMain.vue b/src/layout/components/AppMain.vue
index 62e6ace5..e72e4555 100644
--- a/src/layout/components/AppMain.vue
+++ b/src/layout/components/AppMain.vue
@@ -33,6 +33,8 @@ export default {
 
 .fixed-header+.app-main {
   padding-top: 50px;
+  height: 100vh;
+  overflow: auto;
 }
 
 .hasTagsView {
diff --git a/vue.config.js b/vue.config.js
index 1bcdd190..dcb0c248 100644
--- a/vue.config.js
+++ b/vue.config.js
@@ -7,6 +7,9 @@ function resolve(dir) {
 }
 
 const name = defaultSettings.title || 'vue Element Admin' // page title
+// If your port is set to 80,
+// use administrator privileges to execute the command line.
+// For example, Mac: sudo npm run
 const port = 9527 // dev port
 
 // All configuration item explanations can be find in https://cli.vuejs.org/config/