body, html {
    height: 100%;
    margin: 0%;
    display: flex;
    flex-direction: column;
    padding-bottom: 60px;
}
header {
    width: auto;
    height: 20px;
    background-color: #eee;
    display: flex;
    padding: 0 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    gap: 10px;
}
main h1, h2, h3 {
    text-decoration-line: underline;
}