.youtube-player {
    position: relative;
    padding-bottom: 56.23%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
    margin: .5rem 0 0 0;
    border: solid .15rem rgba(35,171,179, 1);
   background: rgba(127,171,238, 0.25);
}


<style>
   .youtube-player {
       background:transparent;
       filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#7F7FABEE,endColorstr=#7F7FABEE);
       zoom: 1;
    }
    </style>

.youtube-player .play {
    height: 72px;
    width: 72px;
    left: 50%;
    top: 50%;
    margin-left: -36px;
    margin-top: -36px;
    position: absolute;
    background: url(youtube-play.png) no-repeat;
    cursor: pointer;
    -webkit-transition: all 0.2s ease-in-out;
    -moz-transition: all 0.2s ease-in-out;
    transition: all 0.2s ease-in-out;
}
.youtube-player .play:hover {
  background: url(youtube-play-hover.png) no-repeat;
  -webkit-transition: all 0.2s ease-in-out;
  -moz-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
}
.youtube-player iframe {
  width: 100%;
    height: auto;
    min-height: 195px;
}
.youtube-player img {
  width: 100%;
    height: auto;
    min-height: 195px;

}