diff --git a/src/design/index.less b/src/design/index.less
index b2c024af..956c9d85 100644
--- a/src/design/index.less
+++ b/src/design/index.less
@@ -25,6 +25,7 @@ body {
   height: 100%;
   overflow: visible;
   overflow-x: hidden;
+  position: relative;
 
   &.color-weak {
     filter: invert(80%);