modal style under desktop

assets/sass/_theme/design-system/layout.sass

@@ -113,8 +113,12 @@ details
     .modal-content
         position: relative
         background-color: $color-background-alt
-        padding: $spacing3 
+        padding: $spacing2
+        width: auto
+        max-height: 100vh
+        overflow-y: auto
         @include media-breakpoint-up(desktop)
+            padding: $spacing3
             width: col(8)
         .modal-header
             margin-bottom: $spacing0