body {
    font-family: monospace;, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #fff;
}

.container {
    width: 80%;
    margin: 50px auto;
    border: 6px solid #000;
    padding: 20px;
}

header img {
    display: block;
    margin: 0 auto;
}

main {
    text-align: center;
}

main h1 {
    margin-bottom: 20px;
}

main p {
    margin-bottom: 30px;
}

form input,
form textarea,
form button {
    display: block;
    margin: 0 auto 15px;
    padding: 10px;
    width: 80%;
    box-sizing: border-box;
}

form button {
    background-color: #000;
    color: #fff;
    border: none;
    cursor: pointer;
}

footer {
    margin-top: 50px;
    text-align: center;
}

footer h3 {
    margin-bottom: 20px;
}