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Element.clientTop
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
一个元素顶部边框的宽度（以像素表示）。不包括顶部外边距或内边距。clientTop 是只读的。
基于Gecko 的应用从 Gecko 1.9（Firefox 3Firefox bug 111207）开始支持 clientTop。该属性在 Firefox 2 或更早的版本中不被支持。
语法
var top = element.clientTop;示例
padding-top
Gentle, individualistic and very loyal, Birman cats fall between Siamese and Persian in character. If you admire cats that are non aggressive, that enjoy being with humans and tend to be on the quiet side, you may well find that Birman cats are just the felines for you.
All Birmans have colorpointed features, dark coloration of the face, ears, legs and tail.
Cat image and text coming fromwww.best-cat-art.com
padding-bottom
Left、Top、Right、Bottom、margin-top、margin-bottom、border-top、border-bottom
备注
clientTop 首次出现于 MS IE DHTML 对象模型中。