css-viewport-1 css-will-change-1 css-writing-modes-3 css-writing-modes-4 css2 css3-tables-algorithms cssom-1 cssom-view-1 indexes mediaqueries-3 mediaqueries-4 mediaqueries-5 resize-observer-1 scroll-animations-1 selectors-3 selectors-4 ...
min-height max-height line height line-height margin properties margin-top margin-right margin-bottom margin-left margin outline properties outline-width outline-style outline-color outline padding properties padding-top padding-right padding-bottom padding-left padding quotes quotes text properties letter...
heightDefines the height of the viewport. This can be a specific number (e.g.400px) or a range (usingmin-heightandmax-height).<length> aspect-ratioDefines the width-to-height aspect ratio of the viewport<ratio> orientationThe way the screen is oriented, such as tall (portrait) or wide...
Bear in mind that once a site is ready to be tested, it must be verified and validated on real browsers and devices. Don’t limit your tests to the many inadequacies of emulators and simulators; run your code inreal user conditions. ...
-- 导入Parallax视差插件 --> var options = { invertX: false, // 水平方向反转 invertY: false, // 垂直方向反转 limitX: 40, // 水平方向限制 limitY: 40// 垂直方向限制 } var emoji = document.getElementById('emoji'); // 获取元素id为emoji的DOM对象 var parallax = new Parallax(emoji...
You can disable zooming capabilities on mobile devices by adding user-scalable=no to the viewport meta tag. This disables zooming, meaning users are only able to scroll, and results in your site feeling a bit more like a native application. Overall, we don't recommend this on every site,...
We occasionally expand on these media queries to include a max-width to limit CSS to a narrower set of devices. @media (max-width: @screen-xs-max) { ... } @media (min-width: @screen-sm-min) and (max-width: @screen-sm-max) { ... } @media (min-width: @screen-md-min) and...
% (percentage) relative to the parent element’s size. em (font size): relative to the font size. rem (root em): relative to the root element’s font size. vw (viewport width): relative to the viewport’s width. vh (viewport height): relative to the viewport’s height. ...
Use a tag with width or initial-scale Use a Content Delivery Network (CDN) Use explicit width and height on image elements Use HTTP/2 for all resources Use passive listeners to improve scrolling performance Use video formats for animated content User Timing marks and measures PageSpeed (Legacy)...
keepLargerMediaQueriesbooleanfalseKeep media queries even for width/height values larger than critical viewport. forceIncludearray[]Array of css selectors to keep in critical css, even if not appearing in critical viewport. Strings or regex (f.e.['.keepMeEvenIfNotSeenInDom', /^\.button/]) ...