body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: brown;
    margin: 0;

}
header {
    background-color: aquamarine;
    border-bottom: 3px solid red;
    padding: 20px;

}

h1 {
    text-align: center;
    margin-top: 0;
}

header p {
    max-width: 900px;
    margin: 10px auto 20px auto;
    text-align: center;
}

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

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

nav a {
    text-decoration: none;
    color: green;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}

main {
    max-width: 1000px;
    margin: 20px auto;
}

section {
    background-color: white;
    border: 5px solid yellow;
    margin-bottom: 20px;
    padding: 15px;
}

section h2 {
    margin-top: 0;
    color: black;
}

section p {
    text-align: justify;
}

section::after {
    content: "";
    display: block;
    clear: both;
}

section img {
    float: left;
    width: 250px;
    height: auto;
    margin-right: 20px;

}

footer {
    text-align: center;
    padding: 10px;
    font-size: 11px;
    color: beige;
}