diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -2,7 +2,9 @@
 
 DragonRuby is a cross platform game development tool.
 
+<div>
 <iframe width="500" height="281" src="https://www.youtube.com/embed/DYBRzglsEzU" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+</div>
 
 This list categorized community-driven collection of awesome [DragonRuby](https://dragonruby.org) example apps, libraries, tools, frameworks, software and resources.
 Sharing, suggestions and contributions are always welcome!