#banner_bg{position:relative}#banner_bg .cnt_text{position:absolute;left:0;right:0;bottom:18px}#banner_bg .text{font-size:16px;color:#fff;line-height:18px;padding:0 15px}@media only screen and (max-width:768px){#banner_bg{margin-top:55px}#banner_bg .text{display:none}}