.custom_video {
    position: fixed;
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    width: 100%;
    height: 100vh;
    left: 0;
    top: 0;
    background-color: rgba(0, 0, 0, 0.5);
}
.custom_video_open {
    display: flex;
}
.custom_video_container {
    width: 50%;
    background-color: black;
}
.custom_video_video {
    width: 100%;
}
.video_small {
    display: none;
}
@media (max-width: 850px) {
    .custom_video_container {
        width: 90%;
    }
    .video_small {
        display: flex;
    }
    .video_big {
        display: none;
    }
}