/**
*在Position属性值为absolute的同时，
*如果有一级父对象（无论是父对象还是祖父对象，或者再高的辈分，一样）
*的Position属性值为Relative时，则上述的相对浏览器窗口定位将会变成相对父对象定位，
*这对精确定位是很有帮助的。
*/
*{
    margin: 0;
    padding: 0;
	list-style-type:none;
}
/*nav导航盒子*/
div.nav{
    width: 800px;
    height:36px;
    line-height: 36px;
    text-align: center;
    font-size: 18px;
    position: relative;
    background: #643519;
	margin:0px auto 0 auto;
}
/*nav-main*/
ul.nav-main{
    width: 100%;
    height: 100%;
    list-style-type: none;
}
ul.nav-main span{
     display: inline-block;
	  margin-left: 18px;
	  width: 12px;
	  height: 10px;
	  background: url('../images/jiantou.png') no-repeat;
	  background-size: 100%;
}
/*图标向上旋转*/
.hover-up{
    transition-duration: .5s;
    transform: rotate(180deg);
    -webkit-transform: rotate(180deg);
    background-color: #FFBF00;
}
/*图标向下旋转*/
.hover-down{
    transition-duration: .5s;
    transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    background-color: #FFBF00;
}
/*导航条设置*/
ul.nav-main>li{
    width: 150px;
    height: 100%;
    display: block;
    float: left;
    color: #fff;
    background-image:url(../images/blackbg.png) repeat;
    margin-right: 1px;
    cursor: pointer;
}
ul.nav-main>li:hover{
    background-color: #FFBF00;
}
.hoverBg{
	background-color: #FFBF00;
}
/*隐藏盒子设置*/
div.hidden-box{
    width: 150px;
    border: 1px solid #643519;
    border-top: 0;
    position: absolute;
    display:none;
	background:#fff;
    top: 36px;
}
.hidden-box>ul{
    list-style-type: none;
    color: #643519;
    cursor: pointer;
}
.hidden-box li:hover{
    background: #643519;
    color: #fff;
}
.hidden-box li{
    width:150px;
}
/*隐藏盒子位置设置*/
.hidden-loc-index{
    left: 150px;
}
.hidden-loc-us{
    left: 301px;
}
.hidden-loc-info{
    left: 452px;
}
.box04{
	left:602px;
}