img{border: 2px solid silver; border-radius: 7px;}

hr{margin-left:0; border-top: 2px solid silver; }

.mejs-container,
.mejs-controls,
.mejs-embed,
.mejs-embed  body {
  background-color: teal!important;
  border-radius: 7px;
}



.youtube-video {
  aspect-ratio: 16 / 9;
  max-width: 100%;
}