body {
	background-color:#606060;
}
nav {
	width:300px;
	height:auto;
	padding:20px 20px;
}
nav ul {
	padding:0;
	margin:0;
}
nav ul li {
	width:300px;
	height:45px;
	list-style:none;
	font-family:"微软雅黑";
	color:white;
	font-weight:bold;
	overflow:hidden;
	-webkit-transition:all .5s linear;
	-ms-transition:all .5s linear;
	border-bottom:1px solid #a9a9a9;
}
nav ul li a {
	display:block;
	color:#4d4d4d;
	width:300px;
	height:45px;
	text-align:left;
	line-height:45px;
	background-color:white;
	text-decoration:none;
}
.text {
	float:left;
	width:80%;
	display:inline-block;
}
.text i {
	font-size:20px;
}
.i {
	float:left;
	width:20%;
	display:inline-block;
	font-size:20px;
}
.submenu li {
	width:300px;
	height:45px;
	text-align:center;
	line-height:45px;
	background-color:#a8a8a8;
}
.submenu li:hover {
	background-color:#de5f03;
}
.i {
	margin:0 auto;
	-webkit-border-radius:110px;
	-webkit-transition:0.2s ease-out;
	-ms-transform:0.2s ease-out;
	-webkit-transition:0.2s ease-out;
}
.ul {
	-webkit-transform:rotateZ(180deg);
}