body {
    font-family: 'Open Sans', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

html, body {
    height: 100%;
}

.header {
    display: flex;
    background-color: #000000;
    padding: 20px;
    text-align: center;
    height: 250px;
}


nav {
    background-color: #000000;
    padding: 10px;
}


main {
    flex: 1;
}
nav a {
    color: #fff;
    padding: 10px;
    text-decoration: none;
}

nav a:hover {
    background-color: #ffc107;
    color: #000;
}

main {
    padding: 20px;
}

section {
    margin-bottom: 40px;
}

h2 {
    color: #000000;
    font-family: 'Montserrat', sans-serif;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 15px;
}