.business-wrap {
    width: 100%;
    overflow: hidden;
}

.business {
    display: flex;
    flex-wrap: wrap;
    width: 7.76rem;
    margin-left: -0.13rem;
}
.business li:last-child{
    margin-bottom: 1.4rem;
}
.business-item {
    width: 3.7rem;
    height: 3.6rem;
    color: #fff;
    background-color: #000;
    margin-left: 0.13rem;
    margin-top: 0.32rem;
}

.business-item a {
    display: inline-block;
    width: 100%;
    height: 100%;
    text-align: center;
    line-height: 3.6rem;
    color: #fff;
}

.business-item a img{
    width: 100%;
    height: 100%;
}