我想创建一种仅作用于页面内单个 DIV 的浅/粗框。 当我触发第一个 div(phantom_back) 时,它会按照我的要求运行,但第二个 div,phantom_top 将其自身设置在 phantom_back 之后,而不管其 z-index 和定位如何。
我做错了什么?
这是我目前所拥有的:
<html>
<head>
<script type="text/javascript">
<!--//
function phantom_back(image)
{
document.getElementById('phantom_back').style.zIndex = 100;
document.getElementById('phantom_back').style.height = '100%';
document.getElementById('phantom_back').style.width = '100%';
phantom_top();
}
function phantom_top(image)
{
document.getElementById('phantom_top').style.zIndex = 102;
document.getElementById('phantom_top').style.height = 600;
document.getElementById('phantom_top').style.width = 600;
document.getElementById('phantom_top').style.top = 0;
document.getElementById('phantom_top').style.left = 0;
}
//-->
</script>
</head>
<body>
<a href="#" onclick="phantom_back()">Change</a>
<div style="height: 700px; width: 700px; border: 2px black solid; margin:0 auto; background-color: red;" id="overlord">
<div style="height: 10px; width: 10px; position: relative; z-index: -1; background-color: #000000; filter:alpha(opacity=50); -moz-opacity:0.5; -khtml-opacity: 0.5; opacity: 0.5;" id="phantom_back"></div>
<div style="height: 10px; width: 10px; position: relative; z-index: -3; margin: 0 auto; background-color: green;" id="phantom_top">asdf</div>
</div>
</body>
</html>
我在徘徊,为什么我能找到的教程都没有提供这样的内容。
最佳答案
所以,我明白了。我在 phantom_back 上设置了一个绝对定位,而不是试图重新堆叠它们,我只是设置了可见性。当我尝试设置 z-index 时,它会崩溃。
<html>
<head>
<script type="text/javascript">
<!--//
function phantom_back(image)
{
document.getElementById('phantom_back').style.height = 700;
document.getElementById('phantom_back').style.width = 700;
document.getElementById('phantom_back').style.zIndex = 50;
phantom_top();
}
function phantom_top()
{
document.getElementById('phantom_top').style.height = 600;
document.getElementById('phantom_top').style.width = 600;
document.getElementById('phantom_top').style.visibility = "visible";
}
//-->
</script>
</head>
<body>
<a href="#" onclick="phantom_back()">Change</a>
<div style="height: 700px; width: 700px; border: 2px black solid; margin:0 auto; background-color: red;" id="overlord">
<div style="height: 10px; width: 10px; position: absolute; z-index: -1; background-color: #000000; filter:alpha(opacity=50); -moz-opacity:0.5; -khtml-opacity: 0.5; opacity: 0.5;" id="phantom_back"></div>
<div style="margin: 0 auto; text-align: center; height: 10px; width: 10px; position: relative; z-index: 102; top: 10px; background-color: white; visibility: hidden;" id="phantom_top"><br /><br /><img src="load.gif"></div>
</div>
</body>
</html>
关于javascript, css, z-index, div 堆叠,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/529407/