.rt-response.loading {
    padding: 0;
    position: absolute;
    width: 97%;
    height: 95%;
    z-index: 99999999;
    background: rgba(255, 255, 255, 0.9);
}

.rt-response.loading span {
    color: #000;
    top: 45%;
    text-align: center;
    display: block;
    font-size: 20px;
    position: absolute;
    left: 0;
    right: 0;
}