diff --git a/app/assets/stylesheets/common.css.scss b/app/assets/stylesheets/common.css.scss
index 6f702e5ed..ab6a4dece 100644
--- a/app/assets/stylesheets/common.css.scss
+++ b/app/assets/stylesheets/common.css.scss
@@ -1032,6 +1032,21 @@ a.donate {
   margin: $lineheight/4;
 }
 
+/* Rules for edit pages */
+
+.site-edit {
+  #content {
+    position: absolute;
+    top: $headerHeight;
+    bottom: 0;
+    width: 100%;
+  }
+
+  #map {
+    height: 100%;
+  }
+}
+
 /* Rules for non-map content pages */
 
 .content-heading {