#loading {
    display: none
}

.loading {
    display: block;
    background: radial-gradient(rgba(20, 20, 20, .8), rgba(0, 0, 0, .8));
    background: -webkit-radial-gradient(rgba(20, 20, 20, .8), rgba(0, 0, 0, .8));
    bottom: 0;
    left: 0;
    overflow: hidden;
    position: fixed;
    right: 0;
    top: 0;
    z-index: 99999
}

.spinner-border {
    width: 2.5rem;
    height: 2.5rem;
    position: fixed;
    top: 50%;
    right: 45%;
    border-right-color: #f8f8f8
}