body {
    margin: 0;
    font-family: Bahnschrift, Arial, sans-serif;
    background-color: #f5f5f5;
}
header {
    background-color: darkcyan;
    color: white;
    padding: 20px;
    text-align: center;
    font-size: 2rem;
    margin: 0px;
}
main {
    padding: 40px;
    text-align: center;
}
ul {
    list-style: none;
    padding: 0;
}
li {
    margin: 15px 0;
}
.link {
    display: inline-block;
    text-decoration: none;
    color: white;
    background-color: brown;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1.2rem;
    transition: background-color 0.3s ease;
}
a:hover {
    background-color: darkred;
}