diff --git a/src/generators/wc-lit-element/templates/static/demo/index.html b/src/generators/wc-lit-element/templates/static/demo/index.html
index 0e592895..19005834 100644
--- a/src/generators/wc-lit-element/templates/static/demo/index.html
+++ b/src/generators/wc-lit-element/templates/static/demo/index.html
@@ -2,6 +2,7 @@
 <html lang="en-GB">
 <head>
   <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
   <style>
     body {
       background: #fafafa;
