.panel-progress {
    width: 280px;
    height: 60px;
    line-height: 60px;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 6000;
    background-color: #dff0d8;
    border: solid 1px #d6e9c6;
    color: #3c763d;
    border-radius: 3px;
    box-shadow: 1px 3px 5px #333;
    text-align: center;
}
.panel-progress .loading-text {
    padding-left: 10px;
}

.spinner {
    border: 6px solid #f3f3f3;
    border-top: 6px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}