[1. 미디어 보이는 소스]<iframe style="border:2px solid #ff0000; border-radius:30px; box-shadow: 3px -3px 0px #00ff00, 6px -6px 0px #0000ff; width:230px;height:27px;" src="https://www.youtube.com/embed/onfqwrAjL2E?autoplay=1&playlist=onfqwrAjL2E&loop=1&autohide=1&showinfo=0&fs=0&rel=0" frameborder="0" allowfullscreen="" allow="autoplay"></iframe>[ 2. 미디어 안 보이는 소스]<iframe width="1" height="1" src="https://www.youtube.com/embed/onfqwrAjL2E?autoplay=1&playlist=onfqwrAjL2E&loop=1&autohide=1&showinfo=0&fs=0&rel=0" frameborder="0" allowfullscreen="" allow="autoplay"></iframe>