javascript jQuery.offset() 设置位置：绝对。我需要位置：固定
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jQuery.offset() sets position: absolute. I need position: fixed
提问by crush
When you set an element's offset with jQuery.offset({coords})it also sets the CSS property positionto absolute.
当您使用jQuery.offset({coords})它设置元素的偏移量时，也会将 CSS 属性设置position为absolute。
I have a div, however, that I set to position: fixedin my CSS, and I want it to remain that way, even after setting the offset of the element with jQuery.
但是，我position: fixed在 CSS 中设置了一个 div，我希望它保持这种状态，即使在使用 jQuery 设置元素的偏移量之后也是如此。
Now, I'm sure I can probably set the offset, then set position: fixedagain, but I was wondering if there is a way I can tell jQuery to set the position to fixed instead of absolute when it sets offset.
现在，我确定我可以设置偏移量，然后position: fixed再次设置，但我想知道是否有办法告诉 jQuery 在设置偏移量时将位置设置为固定而不是绝对。
HTML
HTML
<div class="searchResults">
...
</div>
CSS
CSS
DIV.searchResults {
position: fixed;
padding: 20px;
background-color: red;
z-index: 501;
}
jQuery
jQuery
$("DIV.searchResults").offset({left: 0, top: 0});
Rendered HTML
呈现的 HTML
<div class="searchResults" style="position: absolute; top: 0px; left: 0px;">
...
</div>
Obviously, since jQuery is setting the position in the style, it will trump the value of my CSS class. So I need a way to tell jQuery to set positionto fixedinstead of absolute, or tell it to set the offset without setting the value of the CSS property position.
显然，由于 jQuery 在样式中设置位置，它将胜过我的 CSS 类的值。所以我需要一种方法来告诉 jQuery 设置position为fixed而不是absolute，或者告诉它设置偏移量而不设置 CSS 属性的值position。
回答by axel.michel
As I commented above, in your case all you need is to modify the CSS for top and left like this:
正如我上面评论的那样，在您的情况下，您只需要像这样修改顶部和左侧的 CSS：
$("DIV.searchResults").css({left: 0, top: 0});
Because the $.offset setter method only manipulates the left, top and position values to make the element relative to the page (from static to relative, and from fixed to absolute). Since you want it position fixed, set the values directly.
因为 $.offset setter 方法只操作 left、top 和 position 值，使元素相对于页面（从静态到相对，从固定到绝对）。由于您希望它的位置固定，请直接设置值。
回答by Céryl Wiltink
Maybe not that elegant, but I think you can just chain .css()after that to be sure that positionis set to fixedlike this:
也许不是那么优雅，但我认为你可以在.css()之后链接以确保position设置为fixed这样：
jquery
查询
$("DIV.searchResults").offset({
left: 0,
top: 0
}).css("position" : "fixed");
Not tested, but I think that'll work.
没有经过测试，但我认为这会奏效。
