html,body,div,ul,li,h1,h2,h3,h4,h5,h6,p,dl,dt,dd,ol,form,input,textarea,th,td,select{margin:0;padding:0}
	*{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
	html,body{min-height:100%}
	body{font-family:Helvetica,Pingfang SC,Microsoft YaHei,STHeiti,Verdana,Arial,Tahoma,sans-serif;font-size:14px;color:#333;background:#fff;position:relative}
	h1,h2,h3,h4,h5,h6{font-weight:normal}
	ul,ol{list-style:none}
	img{border:none;vertical-align:middle}
	a{color:#666;text-decoration:none}
	a:visited{color:#666;text-decoration:none}
	a:hover{color:#666;text-decoration:none}
	a:active{color:#666;text-decoration:none}
	table{border-collapse:collapse;table-layout:fixed}
	input,textarea{outline:none;border:none}
	textarea{resize:none;overflow:auto}
	.clearfix{zoom:1}
	.clearfix:after{content:".";width:0;height:0;visibility:hidden;display:block;clear:both;overflow:hidden}
	/* 本案例CSS*/
	header{ position: relative; z-index: 9999;border-bottom:2px solid #119f0f ; height: 100px; box-sizing: border-box;}
	.wrap{width: 1200px;margin: 0 auto;}
	#nav {display: flex;display: flex;flex-direction: row;justify-content: center;align-items: center;flex-wrap: wrap;}
	.logo{width: 330px;overflow: hidden;}
	.logo a{display:block;}
	.logo a img {max-width: 100%;}
	ul.nav {display: inline-flex;flex: 1;padding-left:50px;}
	li.nav-item {flex: 1;}
	li.nav-item>a{display: block;text-align: center;line-height: 100px;font-size: 16px;position: relative;}
	li.nav-item>a::before{ display: none; content: ''; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); border-width: 0 10px 10px; border-style: solid; border-color: transparent transparent #119f0f; position: absolute;}
	li.nav-item:hover>a ,li.nav-item.active>a{color: #119f0f;}
	li.nav-item:hover>a::before,li.nav-item.active>a::before{display: block;}
	/* 二级菜单 */
	.subMenu{display: none;position: absolute;top: 100px;left: 0;width: 100%; height: 100px;background-color: #119f0f;}
	.subMenu>ul{display: flex;flex-wrap: wrap;flex-direction: row;justify-content: center;align-items: center;}
	.subMenu>ul>li>a{display:block;padding:0 18px;text-align: center;line-height: 50px;color: #fff;}
	.subMenu>ul>li>a:hover{color:red}