diff --git a/frontend/src/components/Layout/AppLayout.css b/frontend/src/components/Layout/AppLayout.css
index 2c72671..494bb3b 100644
--- a/frontend/src/components/Layout/AppLayout.css
+++ b/frontend/src/components/Layout/AppLayout.css
@@ -5,15 +5,12 @@
 .app-sider {
   background: #fff !important;
   border-right: 1px solid #f0f0f0;
-  position: fixed !important;
-  left: 0;
-  top: 0;
-  bottom: 0;
+  width: 220px;
+  flex: 0 0 220px;
   overflow-y: auto;
 }
 
 .app-main {
-  margin-left: 220px;
   min-height: 100vh;
 }