.contact_map {
    width: 920px;
    height: 800px;
    position: relative;
    /* padding-left: 12%; */
}

#contact_map {
    position: absolute;
    z-index: 1;
    top: 0;
	left: 0;
}

.dian_sum {
    position: relative;
    z-index: 2;
    width: 920px;
    height: 800px;
}

.dian_item {
    width: 60px;
    height: 60px;
}

.dian {
    position: absolute;
    z-index: 4;
    width: 10px;
    height: 10px;
    margin-left: -3px;
    margin-top: -3px;
    overflow: hidden;
    border-radius: 50%;
    background: rgba(166, 189, 217, 0.5);
    box-shadow: 0 0 0 0 rgba(166, 189, 217, 0.25);
    animation: myfirst 2.5s linear 2.8s infinite alternate;
    -webkit-animation: myfirst 2.5 linear 2.8s infinite alternate;
}

.dian i {
    margin: calc(50% - 2px) auto;
    display: block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #a6bdd9;
}

.dian_sum .name {
    position: absolute;
    z-index: 5;
    color: #666666;
    line-height: 2;
    font-size: 14px;
}