.footer {
    background-color: #f5f5f5;
}

html {
    font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
}

.container-middle {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 90vh;
}