body
{
    /* background-color: rgb(16, 15, 15); */

    background-color: rgb(16, 15, 15);
opacity: 0.8;
background-image:  radial-gradient(rgb(29, 27, 27) 1px, transparent 1px),
                   radial-gradient(rgb(101, 168, 213) 0.5px, rgb(16, 15, 15) 0.5px);
background-size: 20px 20px;
background-position: 0 0,10px 10px;
background-repeat: repeat;

    display: flex;
    flex-flow: column;
    align-items: center;
    justify-content: center;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}