*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    height: 100%;
    margin: 0;
}

.maindiv {
    position: relative;
    height: 100%;
    width: 100%;
    overflow: hidden;
}

.projectpj {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.maindiv{
    background: radial-gradient(darkslategrey, transparent)
}