.link_box{display:inline-block;width:22%;color:#ffffff;background-color:#0070c0;height:80px;font-size:15px;vertical-align:top;padding-top:30px;margin:10px 1%}
.ai_text{padding:20px;border:1px solid #dedede;background-color:#f9f9f9;margin:20px 0;font-size:15px;line-height:20px;color:#555}