diff --git a/css/crt.less b/css/crt.less
index 31f080c..f89d842 100644
--- a/css/crt.less
+++ b/css/crt.less
@@ -208,7 +208,7 @@
 .crt::before {
     content: " ";
     display: block;
-    position: absolute;
+    position: fixed;
     top: 0;
     left: 0;
     bottom: 0;