css和主页asp.net问题

Question

我在asp.net项目的母版页中使用了以下代码

<a runat="server" href="home.htm" onmouseover="document.Home_Img.src='Images/home_2.png'"
        onmouseout="document.Home_Img.src='Images/home.png'">
        <img alt="" src="Images/home.png" name="Home_Img" runat="server" />
    </a>

它适用于根目录中的所有关联webforms,但不适用于子目录页面.任何sugesstion将得到尊重.

Thnx提前......

Answer 1

您正在使用Images/home.png图像位置的相对URL ,将其更改为绝对/Images/home.png:

<a runat="server" href="home.htm" onmouseover="document.Home_Img.src='/Images/home_2.png'"
        onmouseout="document.Home_Img.src='/Images/home.png'">
        <img alt="" src="/Images/home.png" name="Home_Img" runat="server" />
    </a>

此外,这与CSS无关,因为您使用的是旧式Javascript鼠标悬停.我强烈建议你把它改成:

<style>
a.home {
    background: url(/Images/home.png) no-repeat;
    display: block; /* this may not be correct, depends on the layout */
    height: 100px; /* height of image */
    text-indent: 9999px;
    width: 100px; /* width of image */
}
a.home:hover {
    background: url(/Images/home_2.png) no-repeat;
}
</style>

<a class="home" href="home.htm">Home</a>