#loadDiv {
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #000;
    z-index: 9999;
    transition: opacity 1s;
}

#loadDiv > div {
    height: 60px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate3d(-50%, -50%, 0);
    overflow: hidden;
}

#loadDiv > div > img {
    height: 100%;
    float: left;
}

#loadDiv > div > div {
    width: 0;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    overflow: hidden;
}

#loadDiv > div > div > img {
    height: 100%;
}

#loadDiv .loadAni {
    transition: width .5s;
}