.video_wrapper {
    /* Dummy image*/
    background-image: url("dummy.jpg");
    -moz-background-size: cover;
    -webkit-background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
    height: 400px;
    width: 100%;
}

.video_wrapper .video_trigger {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    z-index: 9;
    /* Centre content */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    flex-direction: column;
}

.video_wrapper .video_layer {
    position: relative;
    display: none;
    height: inherit;
    width: inherit;
    margin: auto;
}

.video_wrapper .video_layer iframe {
    border: 0px none transparent;
    height: inherit;
    width: inherit;
    padding: 0;
}

.video_wrapper .video-btn {
    cursor: pointer;
    display: inline-block;
    transition: color 0.5s, background-color 0.5s, border 0.5s;
    padding: 8px 16px;
    font-size: 16px;
    background-color: transparent;
    color: #fff;
    border: 1px solid #fff;
    border-radius: 3px;
}

.video_wrapper .video-btn:hover {
    background-color: #fff;
    color: #000;
}