diff --git a/docs/guides/v0.3_nginx_tls_guide.md b/docs/guides/v0.3_nginx_tls_guide.md
index ff3edda5..e57236a1 100644
--- a/docs/guides/v0.3_nginx_tls_guide.md
+++ b/docs/guides/v0.3_nginx_tls_guide.md
@@ -2,7 +2,7 @@
 
 ## Walkthrough Video
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/870A5dke_u4?start=1080" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+<iframe width="100%" height="315" src="https://www.youtube.com/embed/870A5dke_u4?start=1080" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
 
 ## Before You Begin