.relation_links {
    width: 1230px;
    margin: 0 auto;
    padding: 0 0 30px 0px;
}
.relation_links h2 {
    font-size: 18px;
    color: #888;
    text-align: center;
    letter-spacing: 2px;
    font-weight: normal;
    margin: 40px auto 20px;
}
.relation_links ul.gallery, .relation_links ul.text {
    overflow: hidden;
    zoom: 1;
}
.relation_links ul.gallery{
  text-align: center;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
.relation_links ul.gallery li {
    width: 150px;
    height: 150px;
    margin: 10px 8px 10px 15px;
    float: left;
    overflow: hidden;
    border:1px solid #e5e5e5;
    position: relative;
}
.titles_tips{
    padding: 5px 10px;
    border-radius: 4px;
    position: absolute;
    background-color: rgba(0,0,0,0.5);
    color: #fff;
    position: absolute;
    left: 50%;
    top:40%;
    display: none;
    white-space:nowrap;
}
.relation_links ul.gallery li:hover .titles_tips{
    display: block;
}
.relation_links ul.gallery li a{
    display: inline-block;
    height: 100%;
}
.relation_links ul.gallery li img{
    width: 100%;
    height: 100%; 
}

.relation_links ul.gallery li a {
    font-size: 0;
}
.relation_links ul.gallery li img {
    width: 100%;
}
.relation_links ul.text li {
    width: calc(20% - 20px);
    margin: 10px 10px;
    float: left;
    overflow: hidden;
    text-overflow:ellipsis;
    white-space: nowrap;
}
.relation_links ul.text li a, .relation_links ul.text li a:hover {
    font-size: 16px;
    line-height: 1.5;
    color: #333333;
}