diff --git a/v3/css/index.css b/v3/css/index.css
index 3520ec3..c64af89 100644
--- a/v3/css/index.css
+++ b/v3/css/index.css
@@ -64,6 +64,7 @@ body.hope-ui-dark::before {
 div#root {
   position: relative;
   z-index: 1;
+  height: 100vh;
 }
 
 /**管理后台*/