*{
	margin: 0;
	padding:0;
	box-sizing:border-box;
}
li{
	list-style: none;
}
a{
	text-decoration: none;
}
body{
	background-color: #ccc;
}
#app{
	width:500px;
	margin:auto;
	background-color: #fff;
	padding: 20px;
}
ul li{
	float: left;
	padding:15px;
	margin-left:1px;
}
ul li a{
	font-size: 24px;
	color: #666;
}
ul:after{
	display: table;
	content: "";
	clear:both;
}
.ul li:first-child{
	border-bottom:2px solid #3388ff; 
}
.ul li:first-child a{
	color: #3388ff;
}
.ul li:hover{
	border-bottom:2px solid #3388ff; 
}
.ul li a:hover{
	color:#3388ff;
}
.div img{
	margin-left: 25%;
	margin-top:5%;
	margin-bottom: 5%;
}
.div input:nth-of-type(1){
	width: 70%;
	height: 55px;
	border:2px solid #d2d2d2;
	outline: none;
	padding: 5px;
}
.div input:nth-of-type(2){
	width: 25%;
	height: 55px;
	margin-left: -2%;
	color:white;
	background-color: #3388ff;
	border:1px solid #3388ff;
	font-size:16px;
	cursor:pointer;
}
li h4{
	color:#999;
	margin-top: 10px;
}
.dv:nth-of-type(7) .ee,.dv:nth-of-type(8) .dd,.dv:nth-of-type(10) .ee{
	margin-left: 39%;
}
/*.dv:nth-of-type(10) .dd{
	display: none;
}*/
.dv img{
	width: 100%;
	margin-bottom:10px;
}
.dv h1{
	padding: 20px 0;
}
.dv a{
	color:red;
	padding:2px;
	border: 1px solid #efb9b9;
	border-radius: 2px;
}
footer ul li{
	float: none;
	margin-left:35%;
}
footer p{
	margin-left: 25%;
	line-height:30px;
	font-size:14px;
}
footer p:last-child{
	margin-left:30%;
}

@media all and (min-width:500px) and (max-width:1200px){
	#app{
		width: 400px;
	}
	ul li{
		padding:8px;
	}
	.div img{
	margin-left:12%;
}
footer p{
	margin-left: 10%;
	line-height:30px;
}
footer p:last-child{
	margin-left:15%;
}
}
@media all and (max-width:499px) {
	#app{
		width:100%;
	}
	ul li{
		padding: 4px;
	}
	ul li a{
	font-size:20px;
}
.div img{
	margin-left:10%;
}
footer p{
	margin-left: 10%;
	line-height:30px;
	font-size:12px;
}
footer p:last-child{
	margin-left:15%;
}
}