body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: #f4f4f4;
    color: #333;
}
.site-header {
    background-color: #305c45;
    padding: 1em;
    color: white;
    text-align: center;
}
.main-nav a {
    color: white;
    margin: 0 15px;
    text-decoration: none;
}
.hero {
    background: url('https://tse2.mm.bing.net/th?id=OIP.11_JkxE2Lk_BrMv-zETdeAHaFj&pid=Api') no-repeat center center;
    background-size: cover;
    color: white;
    padding: 100px 20px;
    text-align: center;
}
.intro {
    padding: 40px 20px;
    max-width: 800px;
    margin: auto;
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.site-footer {
    background-color: #305c45;
    color: white;
    text-align: center;
    padding: 1em 0;
}