body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: url('bg.jpg') no-repeat center center fixed;
    background-size: cover;
}
.container {
    display: flex;
    min-height: 100vh;
    background-color: rgba(255, 255, 255, 0.9);
}
.left, .right {
    flex: 1;
    padding: 40px;
}