diff --git a/apps/readest-app/src/utils/style.ts b/apps/readest-app/src/utils/style.ts
index bdf12b07..af2c66f5 100644
--- a/apps/readest-app/src/utils/style.ts
+++ b/apps/readest-app/src/utils/style.ts
@@ -158,7 +158,7 @@ const getColorStyles = (
     *:has(> hr.background-img):not(body) {
       background-color: ${bg};
     }
-    hr {
+    hr.background-img {
       mix-blend-mode: multiply;
     }
     /* inline images */