What forces layout/reflow. The comprehensive list.
what-forces-layout.md What forces layout / reflow All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck. Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for a
Vertical Centering — Solved by Flexbox — Cleaner, hack-free CSS
The lack of good ways to vertically center elements in CSS has been a dark blemish on its reputation for pretty much its entire existence. What makes matters worse is the techniques that do work for vertical centering are obscure and unintuitive, while the obvious choices (like vertical-align:middle) never seem to work when you need them. The current landscape of vertical centering options ranges
O'Reilly Media - Technology and Business Training
More than 5,000 companies count on our digital courses and more to guide their teams through the tools and technologies that drive business outcomes. We can help yours too. New AI policy for O’Reilly authors and talent O’Reilly president Laura Baldwin shares the company’s ethical approach to leveraging GenAI tools and ensuring O’Reilly experts are compensated for their work. See it now It’s time t
display-table.htc — emulation (polyfill) of {display: table/table-row/table-cell} for Internet Explorer 6/7 (IE6, IE7)
{display: table} for IE6 and IE7 display-table.htc is a JavaScript polyfill library intended to emulate display: table* CSS properties in Internet Explorer 6/7 which do not have their native support. The library is intended solely for IE6/IE7 and disables itself automatically in IE8 and higher. The emulation works by generating a real HTML table which automatically replaces original element intend
GitHub - Simek/css_browser_selector: A very small javascript library that allows you to create browser, platform, device, and even version specific CSS to be merged into your normal classes. No more hacks or mischievous code in your CSS.
CSS Browser Selector is a very small javascript which empowers CSS selectors. You can now write code for: browser, browser version, platform, platform version, device, device version. Best part: no more hacks; all compliant code. More info: http://rafael.adm.br/css_browser_selector beta/experimental versions: https://github.com/verbatim/css_browser_selector/ Identifies browsers: Firefox; IE; Opera
The Condition
We live in an era where buying a normal house can simply cost you an arm and a leg. With the rise of more people moving to urban areas, condominiums have become increasingly popular and attractive to potential buyers due to their reasonable price tags. That’s true. In many cases, owning a condo won’t break the bank. In fact, if you’re looking for some new condos in Montreal, the chance is you’ll b
The case for setImmediate() - Human Who Codes
Posted at July 9, 2013 by Nicholas C. Zakas Tags: Performance, process.nextTick, setImmediate, setTimeout One of my favorite new APIs that has been beaten about is setImmediate(). While I’ll concede the naming is completely wrong, the functionality is completely awesome. The basic idea is to tell the browser that you want some JavaScript code executed after the last UI task in the event loop compl
GitHub - ai/visibilityjs: Wrapper for the Page Visibility API
Visibility.js is a wrapper for the Page Visibility API. It hides vendor prefixes and adds high level functions. Page Visibility API allows you to determine whether your web page is either visible to a user or hidden in background tab or prerendering. It allows you to use the page visibility state in JavaScript logic and improve browser performance by disabling unnecessary timers and AJAX requests,
How browsers work
Introduction Web browsers are probably the most widely used software. In this book I will explain how they work behind the scenes. We will see what happens when you type 'google.com' in the address bar until you see the Google page on the browser screen. The browsers we will talk about There are five major browsers used today - Internet Explorer, Firefox, Safari, Chrome and Opera. I will give exam
Device pixel density tests
If you have a device that isn’t listed below and has a -webkit-min-device-pixel-ratio that’s not 1.0, please let me know and I’ll add it to the list. I’m @marcedwards on Twitter. Devices with -webkit-min-device-pixel-ratio: 1.0 All non-Retina Macs Apple iPhone (1st generation) Apple iPhone 3G Apple iPhone 3GS Apple iPad (1st generation) Apple iPad 2 Apple iPad mini (1st generation) Acer Iconia A50
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Justin Ribeiro
Safari on iOS 14 and iPadOS 14 for PWA and Web Developers－firt.dev
X5 Caniuse Tests
GitHub - RoelN/ChromaCheck: Feature test for color font support in browsers
GitHub - falsandtru/jquery-clientenv: Identify the viewing environment of site visitors. Browser, OS, fonts, and other.
CssUserAgent (cssua.js)
Superconductor: About
GitHub - serkanyersen/ifvisible.js: Crossbrowser & lightweight way to check if user is looking at the page or interacting with it.
GitHub - caolan/async: Async utilities for node and the browser
Browserling – Online cross-browser testing
