/* 광고 */
.ad_container {
    overflow: hidden;
    padding: 30px 0;
    border-top: 1px solid #f5f5f5;
    /* border-bottom: 1px solid #f5f5f5; */
}
.ad_banner_320_100 {
    width: calc((100% - (10px * 2)) / 3 - 0.01px);
    min-width: 320px;
    height: 100px;
    margin-right: 10px;
    float: left; 
}
.ad_container .ad_banner_320_100:nth-child(3n) {
    margin-right: 0;
}
 
@media screen and (max-width: 1000px) {
    .ad_container {
        text-align: center;
    }
    .ad_container > .contents_w {
        width: 100%;
        max-width: 1100px;
        height: 100%;
        margin: 0 auto;
    }
    .ad_banner_320_100 {
        width: calc((100% - (0px * 2)) / 3 - 0.01px);
        min-width: 320px;
        height: 100px;
        /* margin-right: 10px; */
        margin-bottom: 10px;
        float: left;
    }
    .ad_banner_320_100 { 
        margin-right: 0;
        float: none;
        display: inline-block;
    }
    .ad_container .ad_banner_320_100:nth-child(3n) {
        margin-bottom: 0;
    }


    
}