header{background: #444444;}section{color: #323232;}
header nav ul li:nth-child(3) a{color: #118DF7;}
.clearfloat:after{display: block;content: '';clear: both;}
.about-tit{width: 800px;height:64px;line-height: 64px;margin: 0 auto;font-size: 20px;}
.about-tit li{float: left;width: 400px;text-align: center;}
.about-tit li:nth-child(2) a{border-bottom: 4px solid #246aeb;color: #246AEB;display: block;width: 100%;}
.about-tit li a{color: #323232;}
.about-tit li a:hover{color: #118DF7;}
/*联系我们*/
#container{height: 500px;margin-top: 54px;}
.contactcon{height: 500px;width: 1000px;margin: 100px auto 250px;font-size: 20px;}
.contactcon img{margin: -3px 10px 0 0;}
.eng{margin: 20px 0 54px 30px;}.youb{margin: 20px 0 54px 0;}