.loading {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    background-color: rgba(0,0,0,0.8);
    z-index: 9999;
}

    .loading .ripple {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 80px;
        height: 80px;
        margin-left: -40px;
        margin-top: -40px;
    }

        .loading .ripple div {
            position: absolute;
            border: 4px solid rgb(255, 106, 0);
            opacity: 1;
            border-radius: 50%;
            animation: ripple 1s cubic-bezier(0, 0.2, 0.8, 1) infinite;
        }

            .loading .ripple div:nth-child(2) {
                animation-delay: -0.5s;
            }

@keyframes ripple {
    0% {
        top: 36px;
        left: 36px;
        width: 0;
        height: 0;
        opacity: 0;
    }

    4.9% {
        top: 36px;
        left: 36px;
        width: 0;
        height: 0;
        opacity: 0;
    }

    5% {
        top: 36px;
        left: 36px;
        width: 0;
        height: 0;
        opacity: 1;
    }

    100% {
        top: 0px;
        left: 0px;
        width: 72px;
        height: 72px;
        opacity: 0;
    }
}