.responsive-container-video {
    /*width: 98vw;
    height: 98vw;*/
    text-align: center;
    /*margin-left: 5vw;
    margin-right: 5vw;*/
}

    .responsive-container-video iframe {
        max-width: 900px;
        max-height: 500px;
    }
    .responsive-container-video iframe {
        /*position: absolute;*/
        top: 0;
        left: 0;
        width: 90vw;
        height: 50.625vw;
    }

                /*.responsive-container-video2 {
	                position: relative;
	                padding-bottom: 53.25%;
	                padding-top: 30px;
	                height: 0;
	                overflow: hidden;
                }*/