* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f0f0f0;
    color: #333;
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}

.center {
    text-align: center;
}

a {
    color: #ffcc00;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #e6b800;
    text-decoration: underline;
}