.dark .timeline .txt{}
.imgcont {overflow: hidden;}

.youtube-frame {
    margin:0 auto;
    text-align: center;
}

.youtube-video-div {
    float: left;
}

.youtube-iframe {
    width: 560px;
    height: 315px;
}

.youtube-image-div {
    float: left;
    padding-left: 10px;
    padding-top: 50px;
}

@media screen and (max-width: 720px) {
    .youtube-video-div {
        float: none;
    }

    .youtube-iframe {
        width: 100%;
        overflow-y: visible;
    }

    .youtube-image-div {
        float: none;
        padding-left: 0;
    }
}