diff --git a/lib/module.js b/lib/module.js
index f84fc41..4935dba 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -8,7 +8,7 @@ module.exports = function trustboxModule (moduleOptions) {
     templateId: '',
     locale: 'en-US',
     styleHeight: 'auto',
-    styleWidth: 'auto',
+    styleWidth: '100%',
     theme: 'light',
     tags: '',
     schemaType: '',