body {
    font-family: sans-serif;
    font-weight: bold;
    background-color: rgb(135, 184, 229);
    margin-left: 10px;
    padding: 150px;
}

form {
    width: 55%;
    margin: 0 auto;
    background-color: rgba(247, 236, 236, 0.8); 
    padding: 20px;
    border-radius: 8px;
    position: relative;
    z-index: 1;
    text-align: center;
    background-size: cover;
    background-position: center;
}
h1 {
    text-decoration: underline;
    text-align: center;
    color: #333;
}
input[type="submit"] {
    background-color: #4CAF50;
    color: white;
    padding: 6px 8px;
    border: none;
    border-radius: 4px;
    width: 20%;
    font-size: 20px;
}
body::before {
    content: '';
    background-image: url('images/registration.jpg'); 
    background-size: cover;
    background-position: center;
    opacity: 0.9;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    position: absolute;
    z-index: -1;
}