body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: white;
    padding: 10px 0;
}

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

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

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

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

form {
    background: #fff;
    padding: 20px;
    margin-top: 10px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

input[type="text"], input[type="password"], input[type="email"] {
    width: 100%;
    padding: 10px;
    margin: 5px 0 20px 0;
    border: 1px solid #ccc;
    border-radius: 5px;
}

input[type="submit"] {
    width: 100%;
    padding: 10px;
    background: #333;
    border: 0;
    border-radius: 5px;
    color: white;
    font-size: 15px;
}