albertyw/gentle-alerts

#gentle-alerts-modal {
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
    display: none;
    height: 100%;
    left: 0;
    overflow: auto;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 2147483647;
}

#gentle-alerts-modal-content {
    background-color: #fefefe;
    border: 1px solid #888;
    left: 50%;
    padding: 20px;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    white-space: pre-line;
    width: 80%;
}