diff --git a/src/vue/components/Banner.vue b/src/vue/components/Banner.vue
index 2fedcc95..230153fb 100644
--- a/src/vue/components/Banner.vue
+++ b/src/vue/components/Banner.vue
@@ -40,6 +40,8 @@ const server= SERVER
   img {
     width: webkit-fill-available;
     height: webkit-fill-available;
+    width: moz-available;
+    height: moz-available;
     flex-grow: 0;
     object-fit: contain;
   }
diff --git a/src/vue/design/reveal.scss b/src/vue/design/reveal.scss
index 6dda3120..cc731a7d 100644
--- a/src/vue/design/reveal.scss
+++ b/src/vue/design/reveal.scss
@@ -20,6 +20,7 @@
     align-items: center;
     justify-content: space-between;
     width: -webkit-fill-available;
+    width: -moz-available;
     padding: 0.5rem;
     border: solid 2px $color-black;
     font-family: Roboto;