They are similar to the pop-up advertisements in structure; however, they open behind the window in order not to disturb the visitor. After closing the window, the pop-down advertisement is displayed. After the visitor takes the desired information, the advertisement is displayed.
우리 광고전문팀이 귀사의 광고를 발표하면서 보도를 합니다. 우리 서버에는 월 1조이상의 인터넷광고가 관리됩니다
