.banner{height: 210px;overflow: hidden;position: relative}
.about h3{font-size: 23px;color: #008f80;padding: 80px 0 16px;background: url(../images/about_us.png) no-repeat left center}
.content{margin-top: 30px;height: 320px}
.content a{display: block}
.introduction{width: 330px}
.introduction h4{background: url("../images/mapsince-2016.png") no-repeat;text-indent: -9999px;height: 25px}
.introduction p{font-size: 20px;color: #000000;line-height: 32px}
.introduction a{display: block;width: 186px;height: 39px;line-height: 39px;text-align: center;font-size: 18px;color: #008f80;margin-top: 44px;webkit-transition: .7s;transition: .7s;border-radius: 22px;border:1px solid #008f80 }
.introduction a:hover{background: #008f80;color: #fff}