.popup {
    display: flex; /* Show by default */
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* Black background with transparency */
    justify-content: center;
    align-items: center;
    z-index: 1000; /* Ensure the popup is on top */
}

.popup-content {
    position: relative;
    background-color: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.popup-content img {
    max-width: 100%;
    height: auto;
}

.close-btn {
    position: absolute;
    top: 0px;
    right: 1px;
    font-size: 40px; /* Increase size of close button */
    cursor: pointer;
}