Javascript 设置顶部和左侧 CSS 属性
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Setting top and left CSS attributes
提问by Deniz Dogan
For some reason I'm unable to set the "top" and "left" CSS attributes using the following JavaScript.
出于某种原因,我无法使用以下 JavaScript 设置“顶部”和“左侧”CSS 属性。
var div = document.createElement('div');
div.style.position = 'absolute';
div.style.top = 200;
div.style.left = 200;
document.body.appendChild(div);
Using Firebug I can see that the divgets the positionset to "absolute"but the topand leftattributes are not set!
使用 Firebug 我可以看到div获取position设置为"absolute"但未设置top和left属性!
This is for Firefox 3.6.
这适用于 Firefox 3.6。
回答by Lyubomyr Shaydariv
div.style.top = "200px";
div.style.left = "200px";
回答by Eralper
You can also use the setProperty method like below
您还可以使用 setProperty 方法,如下所示
document.getElementById('divName').style.setProperty("top", "100px");
回答by rinogo
div.styleyields an object (CSSStyleDeclaration). Since it's an object, you can alternatively use the following:
div.style产生一个对象(CSSStyleDeclaration)。由于它是一个对象,您可以选择使用以下内容:
div.style["top"] = "200px";
div.style["left"] = "200px";
This is useful, for example, if you need to access a "variable" property:
这很有用,例如,如果您需要访问“变量”属性:
div.style[prop] = "200px";
回答by serkanbasdag
We can create a new CSS class for div.
我们可以为 div 创建一个新的 CSS 类。
.div {
position: absolute;
left: 150px;
width: 200px;
height: 120px;
}

