:root {
    color: hsl(80deg, 75%, 15%);
    background-color: hsl(80deg, 75%, 75%);
}
body {
    background-color: var(background-color);
    color: var(color);
    width: 100dvw;
    height: 100dvh;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
h1 {
    color: var(color);
    background-color: var(background-color);
    border-bottom: 3px solid var(color);
}