diff --git a/tailbone/static/css/layout.css b/tailbone/static/css/layout.css
index 48c607e9..6c1b926f 100644
--- a/tailbone/static/css/layout.css
+++ b/tailbone/static/css/layout.css
@@ -159,7 +159,7 @@ body > #body-wrapper {
     border: 1px solid black;
     margin: 1em;
     padding: 1em;
-    width: 20em;
+    min-width: 20em;
 }
 
 .object-helper-content {
diff --git a/tailbone/static/themes/bobcat/css/layout.css b/tailbone/static/themes/bobcat/css/layout.css
index 3648abac..1c490cbe 100644
--- a/tailbone/static/themes/bobcat/css/layout.css
+++ b/tailbone/static/themes/bobcat/css/layout.css
@@ -124,7 +124,7 @@ header .level .theme-picker {
     border: 1px solid black;
     margin: 1em;
     padding: 1em;
-    width: 20em;
+    min-width: 20em;
 }
 
 .object-helper-content {