youtube iframe not working html code example
Example 1: youtube iframe autoplay not working
<iframe id="existing-iframe-example"
width="640" height="360"
src="https://www.youtube.com/embed/-SFcIUEvNOQ?autoplay=1&mute=1&enablejsapi=1"
frameborder="0"
style="border: solid 4px #37474F"
></iframe>
Example 2: iframe youtube not working
<iframe width="560" height="315" src="https://www.youtube.com/embed/ZwKhufmMxko" frameborder="0" allowfullscreen></iframe>