.container-loading-frete {
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, .7);
    opacity: 0;
    z-index: -1;
    transition: all 0.3s;
}
.container-loading-frete .spinner-border {
    border-color: #fff;
    border-right-color: transparent;
}