body {
    font-family: 'Roboto', Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #b4bfb4;
    color: #333;
}
header {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}
nav ul {
    list-style: none;
    padding: 0;
}
nav ul li {
    display: inline;
    margin: 0 10px;
}
nav ul li a {
    color: #fff;
    text-decoration: none;
}

.main-image {
    text-align: center;
    margin-bottom: 20px;
}

.main-image img {
    width: 100%;
    max-width: 1200px;
    height: auto;
    border-radius: 8px;
}