.panel-progress {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 99999;
    background-color: rgba(255, 255, 255, .9);
    text-align: center;
    padding: 5px;
    border-radius: 5px;
}
.panel-progress .loading-text {
    padding-left: 10px;
}