.d1{
	height: 100px;
	width: 500px;
	position: absolute;
	left: 120px;
}
.d2{
    width: 80px;
    height: 80px;
    margin-left: 40px;
    padding: 1px;
    margin-top: 18px;
}
.d3{
	margin-left: 140px;
	margin-top: -95px;
	position: absolute;
	    font:bold 30px Arial, Helvetica, sans-serif;
    color: #5CADAD;
    text-shadow: -2px -2px yellowgreen,2px 2px #c1ffe4;

}
.d4{
	margin-left: 800px;
	width: 700px;
	padding: 2px;
	position: absolute;
	margin-top: 20px;


}
.c1{
	position: absolute;
	margin-top: 100px;
	width: 100%;
	height: 780px;
	padding: 2px;
}
.nav {
	    width: 1200px;
	    height: 50px;
	}
	ul li {
	    list-style: none;/* 去掉小圆点 */
	}
	ul a {
	    text-decoration: none;/* 去掉下划线 */
	}
	ul li { /*一级菜单的样式 */
	    float: left;
	    width: 100px;
	    height: 50px;
	    line-height: 50px;/* 行高等于高使文字垂直居中 */
	    text-align: center;
			font-size: 20px;/*字体大小*/
	}
	ul li ul li{
	    display: none;/* 隐藏二级菜单 */
	}
	ul li:hover {
	    background-color: AliceBlue ;/* 鼠标经过时显示的背景颜色 */

	}
	.c2{
	position: absolute;
	top: 900px;
	width: 1375px;
	left: 250px;
	height: 520px;
}
.c3{
	height: 250px;
	width: 420px;
}
.c6{
	height: 250px;
	width: 420px;
	margin-top: -10px;
	background-color: Snow  ;
}
.c61{
    height: 40px;
    font-size: 20px;font-family: inherit;
    left: 50px;
    position: absolute;
    top: 275px;
    color: Gray   ;
}
.c62{
    height: 40px;
    font-size: 18px;font-family: inherit;
    left: 15px;
    position: absolute;
    top: 325px;
    color: Gray   ;
}
.c622{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 320px;
    position: absolute;
    top: 330px;
    color: Gray   ;
}
.c72{
    height: 40px;
    font-size: 18px;font-family: inherit;
    left: 15px;
    position: absolute;
    top: 370px;
    color: Gray   ;
}
.c722{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 320px;
    position: absolute;
    top: 375px;
    color: Gray   ;
}
.c82{
    height: 40px;
    font-size: 18px;font-family: inherit;
    left: 15px;
    position: absolute;
    top: 415px;
    color: Gray   ;
}
.c822{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 320px;
    position: absolute;
    top: 420px;
    color: Gray   ;
}
.c91{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 20px;
    position: absolute;
    top: 450px;
    color: Gray   ;
}
.c4{
	position: absolute;
	height: 250px;
	width: 420px;
	left: 430px;
	margin-top: -489px;
}
.c5{
	position: absolute;
	height: 240px;
	width: 420px;
	left: 430px;
	margin-top: -240px;
	background-color: Snow ;
}
.c51{
    height: 40px;
    font-size: 20px;font-family: inherit;
    left: 50px;
    position: absolute;
    top: 20px;
    color: Gray   ;
}
.c52{
    height: 40px;
    font-size: 18px;font-family: inherit;
    left: 15px;
    position: absolute;
    top: 75px;
    color: Gray   ;
}
.c445{
	height: 20px;
	position: absolute;
	background-color: yellow;
}
.c522{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 320px;
    position: absolute;
    top: 80px;
    color: Gray   ;
}
.c521{
    height: 40px;
    font-size: 18px;font-family: inherit;
    left: 15px;
    position: absolute;
    top: 120px;
    color: Gray   ;
}
.c523{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 320px;
    position: absolute;
    top: 125px;
    color: Gray   ;
}
.c53{
    height: 40px;
    font-size: 18px;font-family: inherit;
    left: 15px;
    position: absolute;
    top: 170px;
    color: Gray   ;
}
.c531{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 320px;
    position: absolute;
    top: 175px;
    color: Gray   ;
}
.c54{
    height: 40px;
    font-size: 16px;font-family: inherit;
    left: 20px;
    position: absolute;
    top: 205px;
    color: Gray   ;
}
.c7{
	position: absolute;
	padding: 5px;
	height: 480px;
	width: 505px;
	left: 860px;
	margin-top: -490px;
	background-color: Snow;
}
.c71{
	position: absolute;
	background-color: yellow;
	height: 60px;
	color: Gray;
	font-size: 30px;
	top: 20px;
	left: 120px;
}
.c73{
	position: absolute;
	padding: 5px;
	height: 250px;
	width: 320px;
	color: Gray;
	font-size: 30px;
	top: 10px;
	left: 100px;
}
.c742{
	position: absolute;
	height: 15px;
	color: orange;
	font-size: 22px;
	font-weight: bold;
	top: 280px;
	left: 210px;
}
.c74{
	position: absolute;
	height: 15px;
	color: orange;
	font-weight: bold;
	font-size: 18px;
	top: 310px;
	left: 220px;
}
.c75{
	position: absolute;
	top: 330px;
	width: 90%;
	font-size: 18px;
	color: grey;
	left: 25px;
	letter-spacing: 5px;
}
.c8{
	height: 150px;
	width: 100%;
	background-color: snow;
	position: absolute;
	margin-top: 1400px;
}
.c811{
	margin-top: 20px;
	margin-left: 300px;
}
.c821{
	margin-left: 400px;
	margin-top: -20px;
}
.c831{
	margin-left: 500px;
	margin-top: -20px;
}
.c841{
	margin-left: 600px;
	margin-top: -20px;
}
.c845{
	margin-left: 250px;
	color: grey;
	
}
a{
  color: grey;
  text-decoration: none;
}
a:hover{
	color: orange;

}