body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: #000;
    background-color: #f0f8ff;
}

header {
    background-color: #008080;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

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

nav ul li {
    display: inline;
    margin-right: 10px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 20px;
    background-color: #e6e6fa;
}

img {
    width: 100%;
    height: auto;
}

footer {
    background-color: #008080;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}

form {
    background-color: #fafad2;
    padding: 20px;
    border-radius: 5px;
}

label {
    display: block;
    margin: 10px 0 5px;
}

input, textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
}

input[type="submit"] {
    background-color: #6a5acd;
    color: #fff;
    border: none;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #483d8b;
}

@media screen and (max-width: 600px) {
    nav ul li {
        display: block;
        margin: 0;
    }

    form {
        padding: 10px;
    }
}