display/src/App.css

body {
    font-size: 200%;
    margin-top: 1em;
}

.main {
    margin-bottom: 2rem;
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1.5rem;
    background-color: #e8e8e8;
    font-size: 1rem;
}