我的z-index属性没有设置 [英] My z-index property is not getting set
问题描述
我有一个网站，其中包含登录和联系人模块，该模块从页面的左上角滑出。我只有一个问题：登录模块工作正常，但联系人模块正在文本下面，而不是上面。我设置 z-index：999999; 但是，它仍然不工作。我使用 position：fixed;
I have a site with a log-in and a contact module, which is sliding out from the top-left side of the page. I have only one problem: the log-in module is working fine, but the contact module is going underneath the text, rather than above it. I set z-index: 999999; but, it still isn't working. I'm using position: fixed;
推荐答案
移动#iUngicontactForm表到body标签会修复它。
问题是元素的z-index是从它的父继承的，它只适用于兄弟元素。
Moving #iUngicontactForm from the table to the body tag will fix it. The problem is that the z-index of an element is inherited from it's parent and it only applies to sibling elements. And as you're using fixed positioning, it's a quick fix.
而不是像这样：
<body>
<table>
<tr><td>some content..</td></tr>
<tr><td><div id="iUngicontactForm"></div></td></tr>
</table>
</body>
执行此操作：
<body>
<div id="iUngicontactForm"></div>
<table>
<tr><td>some content..</td></tr>
</table>
</body>
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