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

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

h2  {
    color: #444;
    margin: 10px 0
}

pre.code,
code {
    background-color: #e4e4e4;
    color: #000;
    border-radius: 10px;
    font-family: 'Courier New', Courier, monospace;
}

pre.code {
    padding: 15px;
    overflow-x: auto;
}

code {
    padding: 4px 8px;
    margin: 0 4px;
}

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

footer {
    text-align: right;
    margin-top: 40px;
    font-size: 0.9em;
    color: #777;
}