首页 \ 问答 \ 关于CSS视口宽度/高度的问题(Question on CSS viewport width/height)

关于CSS视口宽度/高度的问题(Question on CSS viewport width/height)

我有3个与视口有关的问题;

  1. 无论元素的尺寸如何,document.documentElement.clientWidth和-Height是否始终给出视口尺寸?

  2. 我们可以获取和设置html元素的宽度吗? 如果是,可以使用CSS和JS完成吗?

  3. 是否存在规则的CSS异常“document.documentElement.clientWidth和-Height仍然给出视口的尺寸,而不是元素的尺寸”


I have 3 questions related to viewport;

  1. Do document.documentElement.clientWidth and -Height always gives the viewport dimensions, regardless of the dimensions of the element ?

  2. Can we both get and set width for the html element ? If yes, can this be done both using CSS and JS ?

  3. Is there a CSS exception to the rule that "document.documentElement.clientWidth and -Height still gives the dimensions of the viewport, and not of the element "


原文:https://stackoverflow.com/questions/7320019
更新时间:2020-02-28 23:02

最满意答案

  1. 无论应用于html元素的样式如何,它都应始终返回视口的尺寸。

  2. 你不能设置它。 因为这需要浏览器窗口也要调整大小。 您可以使用JS调整窗口大小,但不应该这样做。 您可以使用css更改html元素的高度和宽度,但这不会更改clientWidth。

  3. 如果要获取html元素的实际宽度,请使用document.documentElement.offsetWidth

移动是一个不同的故事。


  1. it should always return the dimension of the viewport regardless of styles applied to the html element.

  2. you can't set it. As this would require the browser-window to resize too. You can resize the window using JS but you shouldn't do that. You can change the height and width of the html element with css, but that doesn't change the clientWidth.

  3. if you want to get the actual width of the html element use document.documentElement.offsetWidth

mobile is a bit of a different story.

2011-09-06

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