body {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

main {
    flex: 1 0 auto;
    margin: 0;
}

.full-height {
    height: 100vh;
    padding: 0;
    margin: 0;
}

.background-image {
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 100%;
}