body {
    background-color: #f8f9fa;
}
.navbar {
    margin-bottom: 20px;
}
.footer {
    margin-top: 40px;
    padding: 20px;
    background-color: #e9ecef;
    text-align: center;
}
.wrapper {
    width: 360px;
    padding: 20px;
    margin: 50px auto;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}