.light-youtube-embeds {
    position: relative;
    margin: 10px 0;
    text-align: center;
}

.light-youtube-embeds:before {
    content: "";
    background: url(../../../../wp-includes/images/spinner-2x.gif) no-repeat;
    width: 40px;
    height: 40px;
    position: absolute;
    left: 47.5%;
    top: 44%;
    z-index: 0;
}

.light-youtube-embeds.before:before {
    -webkit-font-smoothing: antialiased;
    -webkit-animation: fa-spin 2s infinite linear;
    animation: fa-spin 2s infinite linear;
    content: "\f021";
    background: transparent;
    display: inline-block;
    font: normal normal normal 14px/1 FontAwesome;
    font-size: 75px;
    position: absolute;
    left: 46%;
    top: 38%;
    width: auto;
    height: auto;
    text-rendering: auto;
    z-index: 0;
}

.light-youtube-embeds .previewThumb {
    cursor: pointer;
    display: inline-block;
    -webkit-transition: .4s all;
    -moz-transition: .4s all;
    transition: .4s all;
    position: relative;
    z-index: 1;
}

.light-youtube-embeds .previewThumb:hover {
    -webkit-filter: brightness(75%);
}

.light-youtube-embeds .playIcon {
    cursor: pointer;
    left: 43%;
    top: 37%;
    position: absolute;
    text-shadow: 0px 4px 3px rgba(0,0,0,0.4),
                 0px 8px 13px rgba(0,0,0,0.1),
                 0px 18px 23px rgba(0,0,0,0.1);
    z-index: 1;
 }
.light-youtube-embeds .playIcon .dashicons {
    color: #eee;
    font-size: 85px;
    opacity: .5;
}
.light-youtube-embeds .playIcon .dashicons:hover {
    color: #cf3427;
    opacity: 1;
}

 .light-youtube-embeds iframe {
    z-index: 1;
    position: relative; 
 }