我想爲整個頁面製作一個半透明的背景圖片,其餘的內容覆蓋在它上面(不透明)。但是,當我嘗試對div進行分層時,pagecontent也是半透明的。我已經嘗試過切換z-index並且不會改變任何東西。div分層無法正常工作:CSS
這裏有兩個相關的樣式
#backgroundImage
{
background-image: url('/Images/background.jpg');
background-size: 100%;
opacity: 0.5;
height: 100%;
width: 100%;
position: absolute;
z-index: 1;
}
#PageWrapper
{
z-index: 2;
}
,這裏是頁面標記
<%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Frontend.master.cs" Inherits="PTMS.MasterPages.Frontend" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
<link href="../Styles/Styles.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="True">
<Scripts>
<asp:ScriptReference runat="server" Path="~/Scripts/jquery-1.4.1.min.js"/>
</Scripts>
</asp:ScriptManager>
<div id="backgroundImage">
<div id="PageWrapper" >
<div id="Header">
<asp:SiteMapPath ID="MainMenuSiteMapPath" runat="server"></asp:SiteMapPath>
</div>
<div id="RightSide">
<UserControls:Sidebar ID="RightSidebar" runat="server" />
</div>
<div id="LeftSide">
<UserControls:Navbar ID="LeftSidebar" runat="server" />
</div>
<div id="MainContent">
<asp:ContentPlaceHolder ID="cpMainContent" runat="server">
</asp:ContentPlaceHolder>
</div>
<div id="Footer">
<asp:LoginName ID="LoginName1" runat="server" FormatString="Logged in as {0}" />
<LoggedInTemplate>
(<asp:LoginStatus ID="LoginStatus1" runat="server" />)
</LoggedInTemplate>
</div>
</div>
</div>
</form>
</body>
</html>
你在用什麼瀏覽器工作? – Rikon 2013-02-20 02:19:08
如果你使用'opacity',所有的子'div'元素也是透明的。你想用'rgba'代替。 – 2013-02-20 02:20:22
我會調查並回復你 - 感謝提示:) – 2013-02-20 02:20:46