Iframe youtube not working

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>

Source: stackoverflow.com

Iframe youtube not working

<iframe width="560" height="315" src="https://www.youtube.com/embed/ZwKhufmMxko" frameborder="0" allowfullscreen></iframe>

Source: stackoverflow.com

Similar codes

1 vote176 views2 answers
Html tutorial
Html
0 vote154 views1 answer
Append html form element
Html
0 vote157 views1 answer
96.158.226.150
Html
1 vote176 views3 answers
Nav-pills class bootstrap
Html
0 vote186 views1 answer
Request html nodejs
Html
0 vote158 views1 answer
Reset button javascript onclick
Html
1 vote215 views2 answers
How to move navlink to the right in bootstrap
Html
17 votes157 views3 answers
Select required
Html
0 vote181 views2 answers
Reveal CSS Animations
Html
0 vote163 views4 answers
<script> var x = 4; var y = 5; var z = x + y; z = x*y; document.getElementById('demo').innerHtml= z; system.print(z); </script>
Html