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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: #4CAF50;
    color: white;
    padding: 15px 0;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 10px;
}

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

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
    margin-top: 20px;
}

footer nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    text-align: center;
}

footer nav ul li {
    display: inline;
    margin: 0 10px;
}

footer nav ul li a {
    color: white;
    text-decoration: none;
}

footer p {
    margin-top: 10px;
}

section {
    margin: 20px 0;
}

h2 {
    color: #4CAF50;
}

img {
    max-width: 100%;
    height: auto;
}

/* Lists */
ul, ol {
    margin: 20px 0;
    padding-left: 40px;
}

ul li, ol li {
    margin-bottom: 10px;
}

ul {
    list-style-type: disc;
}

ol {
    list-style-type: decimal;
}

dl {
    margin: 20px 0;
}

dt {
    font-weight: bold;
}

dd {
    margin-left: 20px;
    margin-bottom: 10px;
}

/* Counted dl */
dl.counted {
    counter-reset: dt-counter;
}

dl.counted dt {
    counter-increment: dt-counter;
}

dl.counted dt::before {
    content: counter(dt-counter) ". ";
    font-weight: bold;
}