* {
    box-sizing: border-box;
}

body {
    margin: 0;
}

.first {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.video_title {
    position: relative;
    z-index: 10;
    color: #fff;
    margin: 0;
    text-align: center;
    font-family: sans-serif;
    font-size: clamp(20px, 10vw, 100px);
}

.vk_title {
    position: relative;
    z-index: 10;
    color:#fff;
    margin: 0;
    text-align: center;
    font-family: sans-serif;
    font-size: clamp(20px, 4vw, 42px)
}

.video_description {
    position: relative;
    z-index: 10;
    color: #fff;
    margin: 0;
    text-align: center;
    font-family: sans-serif;
    font-size: clamp(1px, 4vw, 20px)
}

.video_media {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.intro {
    max-height: 100vh;
    overflow: hidden;
    position: relative;
}

.intro:after {
    content: "";
    display: block;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);

    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}