在jQuery中创建一个CSS类 [英] Creating a CSS class in jQuery
问题描述
我相信jQuery中的.addClass()函数将CSS类附加到当前选择,但我想知道我可以在jQuery中创建或定义一个CSS类,然后附加它?
I believe the .addClass() function in jQuery attaches a CSS class to the current selection, but I was wondering I could create or define a CSS class in jQuery, and then attach it?
推荐答案
实际上,您可以创建一个CSS规则,将影响当前页面上的所有元素。在大多数浏览器中,它应该像下面这样简单:
Actually, you can create a CSS rule that will affect all elements on the current page. In most browsers it should be as simple as:
var style = $('<style>body { background: green; }</style>')
$('html > head').append(style);
这可能会或可能不会在IE中工作,但您可以使用IE的专有 addRule :
This may or may not work in IE, however you can use IE's proprietary addRule instead:
document.styleSheets[0].addRule('body', 'background: green', -1);
当然,这不会帮助您创建可以在网页之间共享的CSS文件,方便的方式影响大量元素的风格,而不需要迭代它们。
Naturally this will not assist you in creating css files that can be shared between webpages, but it is a handy way of affecting the style of a large number of elements without the need to iterate over them.
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