.loading-page {
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    position: fixed;
    z-index: 600;
    display: none;
    background-color: rgba(0,0,0,0.3);
}
.loading-page img {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 220px;
    height: 19px;
}