如何将javascript set style属性返回到CSS默认值

I'm trying to work out how, after changing style properties with javascript, I can revert to the value in the stylesheet (including the units).

我试图弄清楚如何在使用javascript更改样式属性后，我可以恢复到样式表中的值（包括单位）。

In the example below, I'd like the output to read 100px (the value in the CSS), rather than 10px, as getComputedStyle gives.

在下面的例子中，我希望输出读取100px（CSS中的值），而不是像getComputedStyle给出的10px。

I'd also keep the dummy div at top:25px, so removing the style property won't work.

我还将虚拟div保持在顶部：25px，因此删除样式属性将不起作用。

The best I have is cloning the node and reading the height and storing in a property (http://jsfiddle.net/daneastwell/zHMvh/4/), but this is not really getting the browser's default css value (especially if this is set in ems).

我所拥有的最好的是克隆节点并读取高度并存储在属性中（http://jsfiddle.net/daneastwell/zHMvh/4/），但这并没有真正获得浏览器的默认css值（特别是如果这是设置在ems）。

http://jsfiddle.net/daneastwell/zHMvh/1/

<style>
 #elem-container{
   position: absolute;
   left:     100px;
   top:      200px;
   height:   100px;
 }
</style>

<div id="elem-container">dummy</div>
<div id="output"></div>  

<script>
  function getTheStyle(){
    var elem = document.getElementById("elem-container");
    elem.style.left = "10px";
    elem.style.top = "25px";
    var theCSSprop = window.getComputedStyle(elem,null).getPropertyValue("left");
    document.getElementById("output").innerHTML = theCSSprop;
   }
  getTheStyle();
</script>

3 个解决方案

#1

Just clear the inline style you wish to fallback to original stylesheet on.

只需清除您希望回退到原始样式表的内联样式即可。

elem.style.left = null;

3 个解决方案

#1

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