body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    text-align: center;
}

body::before{
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/background.jpg');
    background-size: cover;
    background-repeat: repeat-y;
    background-position: center;
    background-attachment: fixed;
    opacity: 0.3;
    z-index: -1;
}
.button {
    padding: 10px 18px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}
.button:hover {
    background-color: #0056b3;
}