.youtube-player {
    position: relative;
    overflow: hidden;
    max-width: 100%;
    background: transparent;
    width: 320px;
    float: left;
    height: 180px;
}

.youtube-player iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 100;
    background: transparent;
}

.youtube-player img {
    bottom: 0;
    display: block;
    left: 0;
    margin: auto;
    max-width: 100%;
    width: 100%;
    position: absolute;
    right: 0;
    top: 0;
    border: none;
    height: auto;
    cursor: pointer;
    -webkit-transition: .4s all;
    -moz-transition: .4s all;
    transition: .4s all;
}

.youtube-player img:hover,
.youtube-player .play:hover
{
    -webkit-transform: scale(1.2, 1.2);
    -webkit-filter: brightness(75%);
}
.youtube-player .play:active {
    -webkit-transform: scale(0.9, 0.9);
    -webkit-filter: brightness(50%);
}
.youtube-player .play {
    height: 72px;
    width: 72px;
    left: 50%;
    top: 50%;
    margin-left: -36px;
    margin-top: -36px;
    position: absolute;
    background: url("./btn_play.png") no-repeat;
    cursor: pointer;
}