._sourceLoading {
    position:fixed;
    top:40%;left:50%;transform: translateX(-50%);
    width: 20px;
    height: 80px;
    border-bottom: 1px solid #01479D;
}

._sourceLoading .dot {
    width: 20px;
    height: 20px;
    border-radius: 10px;
    background: #01479D;
    animation: jump cubic-bezier(0.5, 0.01, 0.9, 1) 0.6s infinite alternate;
    -webkit-animation: jump cubic-bezier(0.5, 0.01, 0.9, 1) 0.3s infinite alternate;
}

@keyframes jump {
    0% {
        transform: translateY(0px);
        -webkit-transform: translateY(0px);
    }
    100% {
        transform: translateY(60px);
        -webkit-transform: translateY(60px);
    }
}

@-webkit-keyframes jump {
    0% {
        transform: translateY(0px);
        -webkit-transform: translateY(0px);
    }
    100% {
        transform: translateY(60px);
        -webkit-transform: translateY(60px);
    }
}