.popup {
    position: fixed; /* Changed to fixed */
    display: inline-block;
    cursor: move; /* Change cursor to indicate it's draggable */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    min-width: 200px;
    background-color: #555;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 8px 0;
    z-index: 1000; /* Make sure it's above other elements */
}

.popup-header {
    padding: 10px;
    background-color: #333;
    color: white;
    border-radius: 6px 6px 0 0;
}