* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 20px;
    color: #333;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

nav {
    text-align: center;
    margin-bottom: 30px;
}

nav a {
    margin: 0 15px;
    text-decoration: none;
    color: #0077cc;
}

section {
    margin-bottom: 40px;
}

h2 {
    margin-bottom: 15px;
}