/*最外边大盒子*/
.OutBox {
    height: 220px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/*左边按钮*/
.btnLeft {
    width: 42px;
    height: 64px;
    margin-left: 3px;
    /*border: 1px solid #efefef;*/
}

/*右边按钮*/
.btnRight {
    width: 42px;
    height: 64px;
    margin-right: 3px;
    /*border: 1px solid #efefef*/
}

/*外边盒子大小*/
.outBigBox {
    width: 90%;
    height: 140px;
    /*border: 1px solid skyblue;*/
    overflow: hidden
}

/*内嵌ul大盒子*/
.ulBigBox {
    list-style: none;
    /*border:1px solid green;*/
    display: flex;
    box-sizing: content-box;
    width: 200%
}

/*每一个小li*/
.liSmallBox {
    width: 140px;
    height: 140px;
    /*border: 1px solid yellow;*/
    margin-right: 28px
}

.liSmallBox1 {
    width: 140px;
    height: 140px;
    /*border: 1px solid yellow;*/
    margin-right: 28px
}

.liSmallBox2 {
    width: 140px;
    height: 140px;
    /*border: 1px solid yellow;*/
    margin-right: 28px
}

/*每个li内部盒子大小*/
.ImgBox {
    width: 140px;
    height: 140px;
}