diff --git a/src/components/middle/MessageList.scss b/src/components/middle/MessageList.scss
index 7712a80d5..3281e3e08 100644
--- a/src/components/middle/MessageList.scss
+++ b/src/components/middle/MessageList.scss
@@ -125,8 +125,8 @@
     &::before {
       content: "";
       position: absolute;
-      top: -0.3125rem;
-      bottom: -0.3125rem;
+      top: -0.1875rem;
+      bottom: -0.1875rem;
       left: -50vw;
       right: -50vw;
       background: black;