body {
    margin: 0;
}

.clearfix {
    clear: both;
}

nav {
    font-family: Helvetica;
    text-align: right;
    text-transform: uppercase;  
	background: #FFF;
}

nav ul {
    width: 80%;
    margin: 0 auto;
    list-style-type: none;
	padding-top: 20px;
	float: right;
	height: auto;
}

nav ul li {
    display: inline-block;
	color: #1a1a1a;
	font-family:Arial,"微软雅黑",Arial;
	padding: 0 0.5em;
}

nav ul li a {
    color: #1a1a1a;
    text-decoration: none;
    display: inline-block;
    padding:2em 1em 3em 1em;
    box-sizing: border-box;
	font-family:Arial,"微软雅黑",Arial;
	text-align: center;
	border-bottom:#FFF solid 4px;
}

.menu_list_01:link,.menu_list_01:visited{border-bottom:#2b96ff solid 4px;}

.current_page {
    background-color: black;
}

.current_page a {
    color: white;
}

#menu_button_wrapper{
    display: none;
}

.hidden {
    display: none;
}

/* Responsive for smaller screens */

@media (max-width: 810px) {	
    #menu_button_wrapper{
        display: block;
        padding: 1em;
        color: #9d9d9d;
        -webkit-box-shadow: 0 1px 0 rgba(255,255,255,.1);
        box-shadow: 0 1px 0 rgba(255,255,255,.1);
        margin-bottom: .5em;
    }
    
    #menu_button {
        box-sizing: border-box;
        float: right;
        padding: 1em 1em;
        border-radius: 5px;
        color: #1e1e1e;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
    
    #menu_button:hover {
        cursor: pointer;
    }
	
    #hamburger {
        float: right;
        padding-top: .15em;
    }
	#menu_list{
		width:100%;
		height: auto;
	}
	#menu_list li{
		width:100%;
		height: auto;
		text-align: center;
		border-top: #f1f1f1 solid 1px;
	}
	#menu_list li a{
		width:100%;
		height: 4em;
		text-align: center;
		display: block;
		line-height: 4em;
		padding: 0;
		margin: 0;
		color: #3d3d3d;
	}
    #menu_button span{
        display: block;
        background-color: #1e1e1e;
        width: 1.2em;
        height: .15em;
        border-radius: 1px;
        margin-bottom: .2em;
    }
	.fengexian{display:none;}
    nav ul {
        width: 100%;
        margin: 0 auto;
        padding: 0;
    }

    nav ul li {
        display: block;
    }
    
    nav ul li a {
        width: 100%;
    }

}