* {
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #007BFF;
    color: white;
    padding: 20px;
    text-align: center;
}

header h1 {
    margin: 0;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: auto;
}

section {
    background-color: white;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h2 {
    color: #007BFF;
}

ul {
    list-style-type: disc;
    padding-left: 20px;
}

footer {
    text-align: center;
    padding: 10px;
    background-color: #007BFF;
    color: white;
    position: relative;
    bottom: 0;
    width: 100%;
}

@media (max-width: 600px) {
    header, footer {
        padding: 15px;
    }
    
    main {
        padding: 10px;
    }
}