h4 {
	text-align: center;
}
.popup {
    display: none; /* Hidden by default */
    position: fixed;
    left: 50%;
    top: 80%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 2px;
    border-radius: 8px;
	border: 3px solid red;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.popup button {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
}