.main {
    width: 1320px;
    height: 900px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
}

.box {
    width: 254px;
    height:auto;
    background:#f2f2f2;
    padding:23px;
    margin-bottom:16px;
}

.box h2{color:#808080;font-size:14px;font-weight:normal;text-align:center;margin-top:20px;padding-top:20px;border-top:1px solid #aaa;line-height:2em;}
.box:hover  h2{
   color:#0087ac;
}
.pic {
    width: 208px;
    height:auto;
    margin:0 auto;
    cursor:pointer;
}

.show {
    opacity: 1;
}