diff --git a/src/style/main.scss b/src/style/main.scss
index 2f4c23f..a5ad070 100644
--- a/src/style/main.scss
+++ b/src/style/main.scss
@@ -591,6 +591,9 @@ li {
             border-right:var(--el-table-border);
             background: #F7FBFF !important;
         }
+        .el-table__expand-icon {
+            height: 40px;
+        }
     }
 }