Jquery DataTables插件更改标题&；页脚背景色

我使用DataTables jQuery插件来显示网格。我有一个模式弹出窗口，它改变了整个表单的背景色，并且意外地改变了前面提到的表的页眉和页脚背景色的背景色。这是用于初始化弹出窗口的代码：

var modalBackground = $("#modalBackground");
var Notifications_ArchiveHolder = $("#Notifications_ArchiveHolder");
var Notifications_ShowArchivePopupHolder = $("#Notifications_ShowArchivePopupHolder");
var ArchiveURL = "@Url.Action("Archive")";
var ShowArchiveUrl = "@Url.Action("ShowArchive")";

function ShowArchivePopup() {        
    $.get(ArchiveURL, function (content) {
        if (Notifications_ArchiveHolder.html().length <= 10) {
            Notifications_ArchiveHolder.html(content);
            InitArchivePopup();
        }
    })
}

function InitArchivePopup() {       
    modalBackground.show();
    //set up positon
    var h = $(window).height();
    var w = $(window).width();
    var hh = Notifications_ArchiveHolder.height();
    var hw = Notifications_ArchiveHolder.width();
    var posx = (h / 2) - 100;
    var posy = (w / 2) - 200;
    Notifications_ArchiveHolder.css("position", "fixed");
    Notifications_ArchiveHolder.css("top", posx);
    Notifications_ArchiveHolder.css("left", posy);

    Notifications_ArchiveHolder.show();
    $("body").css("overflow", "hidden");
}

var modalBackground=$（“#modalBackground”）；
var通知\档案持有人=$（“通知\档案持有人”）；
var通知(u showArchivePopUploader=$（“#通知_showArchivePopUploader”）；
var ArchiveURL=“@Url.Action（“存档”）”；
var ShowArchiveUrl=“@Url.Action（“ShowArchive”）”；
函数ShowArchivePopup（）{
$.get（ArchiveURL，函数（内容）{
如果（Notifications_ArchiveHolder.html（）.length我发现了问题（在一些帮助下）：我在模式弹出窗口中引用了jQuery-UI.css，这导致数据表的属性被覆盖。非常奇怪

<div id="Notifications_ArchiveHolder" style="background-color: white; display: none; z-index: 9999;"></div>

<div id="modalBackground" class="graphicScreen" style="display: none; position: fixed; top: 0px; left: 0px;"></div>

 .graphicScreen
{
position: fixed;
width: 100%;
height: 100%;
margin: 0;
padding: 50px;
background-color: #878786;
z-index: 9990;
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
filter: alpha(opacity=30);
-moz-opacity: 0.3;
-khtml-opacity: 0.3;
opacity: 0.3;
}