.case{
    padding: 0 0.25rem;
    margin-top: 0.6rem;
}
.case li{
    float: left;
    width: 3.45rem;
    margin-bottom: 0.3rem;
}
.case li img{
    width: 3.45rem;
    height: 2.5rem;
    
}
.case li p{
    text-align: center;
    font-size: 0.28rem;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
    margin-top: 0.15rem;
}
.case li:nth-child(even){
    float: right;
}