*{
	margin: 0px;
	padding: 0px;
}
#header{
	position: fixed;
	z-index:9999;/*漂浮在最上层*/
	width:100%;
	height:40px;
	background-color: #222222;
}
#title{
	color: gray;
	font-weight: bolder;
}
#log{
	float: left;
	color: gray;
	padding-left: 10px;
	text-decoration: none;
}
#log:hover{
	color: white;
}
#maintitle{
	position: absolute;
	margin-top: 10px;
	margin-left: 30px;
}
#login{
	position: absolute;
	margin-left: 86%;
	margin-top: 10px; 
	margin-right: 40%px;
}
#body{
	margin: auto;
	width: 1000px;
	height: 1000px;
	-webkit-box-shadow: #666 0px 0px 10px;/*边框阴影效果*/
}
#about-head{
	text-align: center;
	background-color: #337AB7;
}
#content{
	padding: 10%;
}
#about{
	float: left;
	position: relative;
	top: 5%;
	left: 5%;
	width: 22%; 
	border: solid black 1px;
	border-radius: 6px;
}
#level{
	float: left;
	padding-right: 5%;
}
#level a{
	text-decoration: none;
	display: block;
	background-color: black;
	color: white;
	font-weight: bold;
	margin-right: 1px;
	padding:0px 3px; 
}
#container{
	position: relative;
	left: 40%;
	top: 5%;
	height: 50%;
	width: 50%;
	border-radius: 15%;
/*	border:solid 1px;*/
	background-color: #F5F5F5;
}
#sudoku-table{
	position: absolute;
	left: 52%;
	top: 20%;
	width: 400px;
	height: 400px;
	border: solid 2px black;
}
.input{
/*	border-style: none;*/
	position: absolute;
	width: 35px;
	height: 35px;
	top: 125px;
	left: 665px;

	font-size:1.4em;
	text-align: center;
	border-radius:4px;
	border:1px solid #c8cccf;
	color:#6a6f77;
/*	border:none;*/
}
#choose{
	position: absolute;
	width: 100%;
	left: 20%;
	top: 5%;
}
#container button{
	cursor: pointer;
	outline: none;
	border-radius: 20%;
	color: white;
	width: 60px;
	background-color: #337AB7;
}
#footer button{
	position: relative;
	top: 470px;
}
#submit{
	left: -100px;
}
#clean{
	left: 60px;
}
#foot{
	text-align: center;
	width: 100%;
	height: 50%;
	background-color: black;
}
#foot a{
	text-decoration: none;
	color: white;
}
#aboutit{
	position: relative;
	top: 15%;
	left: 10%;
	width: 80%;
	height: 20%;
	border: dotted 4px #337AB7;
}
#contents{
	padding: 10px;
	text-align: center;
}
#contents2{
	padding: 10px;
	text-align: center;
}