diff --git a/public/templates/data.tmpl b/public/templates/data.tmpl
index 04bc224..70d3a22 100644
--- a/public/templates/data.tmpl
+++ b/public/templates/data.tmpl
@@ -16,7 +16,7 @@
     #map {position:absolute;top:0;left:0;right:250px;bottom:0;}
     {{/is_terrain}}
     {{#is_terrain}}
-    #map { position:absolute; top:0; bottom:0; width:100%; }
+    #map { position:absolute; top:0; bottom:0; left:0; right:0; }
     {{/is_terrain}}
     h1 {position:absolute;top:5px;right:0;width:240px;margin:0;line-height:20px;font-size:20px;}
     #layerList {position:absolute;top:35px;right:0;bottom:0;width:240px;overflow:auto;}