我正在开发一个ASP.NET页面。在母版页中我有一个像这样的div:
<body id="page1" >
<form id="form2" runat="server">
<div id="content">
<!-- this is popup light grey show -->
<div class="darkenBg" id="popupBackground" style="display:none;"></div>
<!-- content -->
<div class="greenBox2 popUpWin" id="companySigninPopup" style="display:none;">
<div class="topWrap">
<!-- popup window -->
</div>
<div class="botWrap">
<div class="corner-bottom-left"> </div>
<div class="border-bottom"> </div>
<div class="corner-bottom-right"> </div>
</div>
</div>
</div>
</div>
</div>
我会这样展示它:
function ShowHomePagePopup(popupId) {
$("#" + popupId).show();
$("#popupBackground").show();
$('#popupBackground').height(800);
$("#page1").addClass('hideScrollbars');
}
CSS是这样的:
html, body {
height:100%;
margin:0px;
}
.darkenBg { /*added this div after body*/
background: url(/images/blackBg.png);
position:absolute;
z-index:30;
width:100%;
height:100%;
bottom:0px;
}
.popUpWin {
position:absolute;
z-index:31;
width:500px;
left:50%;
margin:200px 0 0 -250px
}
.hideScrollbars {
overflow: hidden;
}
#content {
background:url(/images/bg.gif) top left repeat-x #fff;
overflow:hidden;
padding-bottom:20px;
}
- 当弹出窗口出现时,它是水平居中的,但垂直上方,因此它位于屏幕顶部中心位置。
- 覆盖层,浅灰色背景,意味着popupBackground仅占屏幕高度的10%,虽然宽度为100%。我该如何使其高度达到100%?