diff --git a/assets/modal/modal.css b/assets/modal/modal.css
index 547e75a..b8ee6a2 100644
--- a/assets/modal/modal.css
+++ b/assets/modal/modal.css
@@ -69,8 +69,8 @@
     top: 0;
     left: 0;
     z-index: 1040;
-    width: 100vw;
-    height: 100vh;
+    width: 100%;
+    height: 100%;
     background-color: var(--modal-backdrop-color-content, #000);
     opacity: var(--modal-backdrop-opacity, 0.5);
 }