body
{
    /* display: flex; */
    background: radial-gradient(white, grey);
}

.mainsection
{
    opacity: 0.75;
    width: 100%;
    height: 100%;
    /* transform: scale(70%,70%); */
    /* background-color: black; */
    background-image: url("../viz/small--coned-blu.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain, 70%;
}