diff --git a/src/global/global.less b/src/global/global.less
index d2ad61f684..3882982f04 100644
--- a/src/global/global.less
+++ b/src/global/global.less
@@ -45,8 +45,8 @@ div.adm-px-tester {
   height: calc(var(--size) / 2 * 2px);
   width: 0;
   position: fixed;
-  right: -100vw;
-  bottom: -100vh;
+  left: -100vw;
+  top: -100vh;
   user-select: none;
   pointer-events: none;
 }