diff --git a/templates/user/collection.tmpl b/templates/user/collection.tmpl
index 52d1934..73fb8a2 100644
--- a/templates/user/collection.tmpl
+++ b/templates/user/collection.tmpl
@@ -251,12 +251,15 @@ var $normalHandleEnv = document.getElementById('normal-handle-env');
 var opt = {
 	showLineNumbers: false,
 	showPrintMargin: 0,
+	minLines: 10,
+	maxLines: 40,
 };
 var theme = "ace/theme/chrome";
 var cssEditor = ace.edit("css-editor");
 cssEditor.setTheme(theme);
 cssEditor.session.setMode("ace/mode/css");
 cssEditor.setOptions(opt);
+cssEditor.resize(true);
 </script>
 
 {{template "footer" .}}