.white_content {
        display: none;
        position: absolute;
        top: 0.5em;
        left: 19em;
        width: 42em;
        height: 31em;
        padding: 7px;
        border: 4px solid #4CAF50;
        border-radius: 10px;
        background-color: white;
        z-index:1002;
    }