body {
    background-color: aliceblue;
    font-family: Arial, Helvetica, sans-serif;
    color: black;
    margin: 0;
    padding: 0;
}

nav {
    background-color: cadetblue;
    padding: 15px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
    padding: 8px 12px;
}

nav a:hover {
    background-color: azure;
    border-radius: 5px;
}

header, main {
    padding: 20px;
    margin: 20px;
}

h1 {
    color: black;
    font-size: 36px;
}

h2 {
    color: black;
    font-size: 26px;
    margin-top: 23px;
}

h3 {
    color: black;
    font-size: 22px;
}

p {
    font-size: 18px;
    line-height: 24px;
}

ul, ol {
    margin-left: 25px;
    padding: 10px;
}

li {
    margin-bottom: 8px;
}

img {
    display: block;
    margin-top: 15px;
    margin-bottom: 15px;
    border: 3px solid cadetblue;
    border-radius: 8px;
    max-width: 100%;
}

@media (max-width: 600px) {
    body {
        padding: 10px;
    }

    nav a {
        display: block;
        margin: 10px 0;
    }

    img {
        width: 100%;
    }
}