html{
         font-size: 26px;/*导航栏34（含导航下拉菜单的字号34），列表页30，文章内容最小26*/
         background-color: #e9e9e9;
    }
    ul li{ list-style: none;}
    div{
        box-sizing: border-box;
    }
    body,input,i,a{
        padding:0;
        margin:0;
        text-decoration: none;
        color:#000;
        outline: none;
    }
    body{
        background: rgb(240,240,240);
        font-family:"微软雅黑";
    }