diff --git a/src/styles/_layers.scss b/src/styles/_layers.scss
index f0771ba..7f19e5f 100644
--- a/src/styles/_layers.scss
+++ b/src/styles/_layers.scss
@@ -1,4 +1,7 @@
 // z-index
+.mosaic-modal {
+    z-index: 20;
+}
 .site-header,
 .site-footer {
     z-index: 10;