body{
        margin: 0px;
        min-width: 660px
}
nav{
        font-size: 13px;
        height: 3em;
}
ul{
        list-style: none;
        margin: 0;padding: 0;
}
.nmb{
        margin: 0.5em 0;
        float: right;
}
.nmb li,.footerItem li{
        float:left;
        margin-right:1.5em;
        line-height:2em;
}
.nmb li a:hover,.footerItem li a:hover{
        color: red;
}
#more{
        background-color:blue;
        padding:0 0.5em;
}
#more a{
        color: black;
        text-decoration: none;
}
#more>a{
        color:white;
}
section{
        text-align:center;
        font-size: 14px;
}
section input{
        margin: 0;
        padding: 0;
        border: none;
        outline: none;
}
section input[type=text]{
        width: 40em;
        padding-left: 0.5em;
}
section input[type=button]{
        background-color: blue;
        width: 6em;
        height: 28px;
        color: white;
}
section .center,.center_left,.center_right{display: inline-block;}
.center_left{border: 1px solid gray;border-right: 0px;float: left;height: 28px;line-height: 28px;}
.center_right{float: left;height: 28px;border: 1px solid blue;border-left: 0px;}
section img{margin-bottom: 2em;}
footer{font-size: 12px;margin-top: 15%}
.footerItem{width: 602px;margin: 0 auto;}
.footerItem li span:nth-child(1){font-weight: bold;}
.footerItem li span:nth-child(3){color: grey;}
.footerItem li div:nth-child(1) a{color: black;}
.footerItem li div:nth-child(2) a,.footerItem li div:nth-child(2) {color: gray;}
.settings{position: relative}
.settings:hover .setbox{display: block;}
.setbox{border: 1px solid gray;position: absolute;top: 2.5em;left: 50%;margin-left: -2.5em;display: none;
box-shadow: 5px 0 20px gray;}
.setItem{position: relative;z-index:3;}
.setItem li{float: none;width: 5em;text-align: center;margin: 0px}
.setItem li:hover{background-color: blue;color: white;cursor: pointer;}
.box{width: 1.5em;height: 1.5em;position:absolute;top:-1.5em;left:50%;margin-left: -0.75em;}
.triangle1,.triangle2{height: 0;width: 0;border: 0.75em solid gray;
        border-left-color: transparent;
        border-top-color: transparent;
        border-right-color: transparent;}
.triangle2{border-bottom-color: white;position: absolute;bottom: -0.5px;}
#more:hover>div{display: block;}
#more>div{
        position: fixed;
        height: 100%;
        right: 0;
        top: 0;
        border-left: 1px solid gray;
        background-color: white;
        width: 8em;
        display: none;
        text-align: center;
}
#more>div span{
        display:block;
        line-height: 2em;
        margin: 0.5em auto;
}
.imglist{background-image:url("../img/imglist.png");
        background-repeat: no-repeat;
}
#more .imgItem{display:block;text-align: center;color: gray;}
#more .imgItem:hover{text-decoration: underline;color:pink;}
.music{width: 42px;height: 41px;background-position: -72px 0px;}
.tupian{width: 37px;height: 41px;background-position: -112px 0px;}
.zhidao{width: 36px;height: 41px;background-position: -36px 0px;}
.wenku{width: 31px;height: 41px;background-position: -149px 0px;}
.fengyunbang{width: 42px;height: 41px;background-position: -180px 0px;}
.baidutuiguang{width: 38px;height: 41px;background-position: -220px 0px;}
#more .imgItem:last-child{text-decoration: underline;}
#backgroundColor{position:fixed;width:100%;height:100%;left:0px;top:0px;background-color: gray;opacity: 0.5;display: none}
#loginForm{position:fixed;left:50%;top:50%;width:260px;height:310px;background-color: white;
        border: 1px solid black;margin: -176px 0 0 -151px;padding: 20px 20px;display: none;}
#loginForm div{margin: 2em 0;}
#loginForm input[type=button]{border: none;outline: none;color:white;background-color: black;
        width:100%;height: 3em;border-radius: 5px;}
#loginForm input[type=button]:hover{cursor: pointer;background-color: gray;}
#close{position: absolute;right:5px;top:5px;background-color: red;color: white;border-radius: 20px;
width:1em;height:1em;text-align: center;line-height: 0.8em;font-size: 1.5em;}
#close:hover{cursor: pointer;background-color: gray;}

#box ul{border: 1px solid gainsboro;border-top: 1px solid transparent;}
#box li {
        cursor: pointer;
text-align: left}
#box li:hover {
        background: #ccc; }
.gray {
        background: #ccc; }
.center_right input{cursor: pointer;}