.banner {
    width: 100%;
    height: 300px;
    background: url("../images/bg-notice-header.jpg") no-repeat top center;
    background-size: cover;
    overflow: hidden;
    margin-top: 100px;
}
/* /导航 */ 

.main .nav .nav-box {
    display: inline-block;
    width: 433px;
    height: 70px;
    box-sizing: border-box;
    font-size: 16px;
    cursor: pointer;
}

.main .nav .nav-box:first-of-type,
.main .nav .nav-box:last-of-type {
    width: 432px;
}
 

.main .nav .nav-bg {
    background-color: #ff3f3f;
    width: 435px;
    height: 70px;
    position: absolute;
    top: -1px;
    left: -1px;
}

.main .nav .nav-bg i {
    width: 15px;
    height: 14px;
    display: inline-block;
    background: url("../images/icon.png") no-repeat -675px -90px;
    margin: 70px 0 0 213px
} 
/* 内容 */
.main .content {
    padding: 50px 30px;
    box-sizing: border-box;
    display: none;
}
.main .on { 
    display: block;
}
.main .InformationList .list-box .date{
    display: block;
}