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

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    width: 80%;
    margin: 0 auto;
}

header {
    background-color: #333;
    color: #fff;
    padding: 20px 0;
}

header h1 {
    text-align: center;
}

header nav ul {
    list-style: none;
    text-align: center;
}

header nav ul li {
    display: inline;
    margin: 0 15px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

section {
    padding: 40px 0;
}

section h2 {
    font-size: 2em;
    margin-bottom: 20px;
}

article {
    background-color: #fff;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 8px;
}

article h3 {
    font-size: 1.5em;
    margin-bottom: 10px;
}

article p {
    font-size: 1.2em;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}