2015年6月25日 · How does vw and vh unit works. The answer specifically says. vw and vh are a percentage of the window width and height, respectively: 100vw is 100% of the width, 80vw is 80%, etc. This seems like the exact same as the % unit, which is more common. In Developer Tools, I tried changing the values from vw/vh to % and viceversa and got the same result.

2014年8月10日 · vw and vh stand for viewport width and viewport height respectively. The difference between using width: 100vw instead of width: 100% is that while 100% will make the element fit all the space available, the viewport width has a specific measure, in this case the width of the available screen, including the document margin.

2015年4月5日 · 5.1.2. Viewport-percentage lengths: the ‘vw’, ‘vh’, ‘vmin’, ‘vmax’ units. The viewport-percentage lengths are relative to the size of the initial containing block. When the height or width of the initial containing block is changed, they are scaled accordingly.

2015年6月10日 · the vw unit is based on the width of the viewport.. 1vw is 1% of the browser viewport width. (vh is the corresponding value for height)

Excellent technique! To simplify the CSS you can add the following code to your stylesheet: html{ --vw:1vw }; This allows you to use var(--vw) without a fallback, as the value of --vw defined in CSS will be overridden by JS. If JS fails, the value defined in CSS works as a fallback. –

Viewport units are great but most mobile browser vendors managed to make vh unusable in practice.. When you start scrolling or change scrolling direction, the address bar will either disappear or come back; then you stop, release your finger and the vh value will suddenly be updated alongside any element using it resulting in a UX nightmare (user not expecting anything to resize at the end of ...

2015年11月9日 · According to the specs, vw does take scrollbar width away UNLESS the overflow is on auto, then it works like "hidden" for the vw value. So if the page must overflow, set it to "scroll". With overflow-x & overflow-y you choose which scrollbar to display. –

2019年9月25日 · Therefore you would need to auto generate numbers in LESS CSS (see link below) or to auto generate values in Javascript. Finally, and the most time consuming would be to set all the contents of your page to scale based on vw and vh - so every length measurement above 1920px is set as a viewport width or a viewport height value.

width: 100vw;/* 100% of viewport width */ height: 100vh;/* 100% of viewport height*/ This CSS should give me the exact(100%) dimensions of the viewport. But it is apparently too large because it's

2016年1月22日 · VW is viewport width (the visible size of the window) and em is the width of the letter 'm' in the current font. So 5vh is 5% of the viewport and 5em is the width of 5 'm's. Further Reading: CSS Values and Units Module Level 3. Mozilla Developer Network article on …