diff --git a/datasette/templates/database.html b/datasette/templates/database.html
index 0b6190e1..4b405ea0 100644
--- a/datasette/templates/database.html
+++ b/datasette/templates/database.html
@@ -16,7 +16,7 @@
 <link rel="stylesheet" href="/-/static/codemirror-5.31.0-min.css" />
 <script src="/-/static/codemirror-5.31.0-sql.min.js"></script>
 <style>
-    .CodeMirror { height: auto; border: 1px solid #ddd; }
+    .CodeMirror { height: 70px; width: 80%; border: 1px solid #ddd; }
     .CodeMirror-scroll { max-height: 200px; }
 </style>
 {% endblock %}