<iframe width="942" height="530" src="https://www.youtube.com/embed/HKLMPwJJt30" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

<iframe width="942" height="530" src="https://www.youtube.com/embed/rL9xt_lCPOQ" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

<iframe width="942" height="530" src="https://www.youtube.com/embed/9IR_ijJFPzg" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Webmasters:  The following are some embed codes that you can use as promo videos.

<iframe width="942" height="530" src="https://www.youtube.com/embed/j1D3B3lUnVk" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>