.public-notice_wrapper{
    /*display: none;*/
    z-index: 1111111;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    margin: 0;
    background: url("../img/public_notice/icon_bg.png") repeat;
}
    .public-notice{
        position: absolute;
        top: 50%;
        left: 50%;
        width: 836px;
        height: 600px;
        margin-top: -300px;
        margin-left: -418px;
    }
    .public-notice_header{
        position: absolute;
        top: 20px;
        right: 0;
        width: 52px;
        height: 52px;
        background: url("../img/public_notice/icon_close.png") no-repeat;
        cursor: pointer;
    }
    .public-notice_body{
        width: 100%;
        height: 100%;
        background: url("../img/public_notice/public_notice.png") no-repeat;
    }