body {
    background: radial-gradient(farthest-corner at 50% 25%,
            purple 10%,
            rgb(14, 10, 63) 100%);
    margin: 0;
    padding: 0;
}

.container {
    height: 100lvh;
    width: 100lvw;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

h1 {
    color: antiquewhite;
    background-color: brown;
}

.box {
    border: 2px;
    border-radius: 5;
    color: white;
    width: 30%;
    background-color: burlywood;
}