.msgbox {
    position: fixed;
    top: 50%;
    right: 50%;
    transform: translate(50%, -50%);
    background: lightyellow;
    color: black;
    padding: 2rem 1rem;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    z-index: 9999;
}

    .msgbox.show {
        opacity: 1;
    }