入門者向け alt属性の書き方アドバイス Web Accessibility Advent Calendar 2017
入門者向け alt属性の書き方アドバイス
入門者向け alt属性の書き方アドバイス Web Accessibility Advent Calendar 2017
The Story of CSS Grid, from Its Creators
Illustration by Dougal MacPherson
A Look Back at the History of CSS | CSS-Tricks
When you think of HTML and CSS, you probably imagine them as a package deal. But for years after Tim Berners-Lee first created the World Wide Web in 1989, there was no such thing as CSS. The original plan for the web offered no way to style a website at all. There’s a now-infamous post buried in the archives of the WWW mailing list. It was written by Marc Andreessen in 1994, who would go on to co-
Diff at the edge with serverless cloud functions
Diff at the edge with serverless cloud functionsI was recently downloading packages using the npm package manager, and realized that although I often have a previous version of a package already installed, npm has to download the entire tarball for the new version if installing an update to a module. This seems very inefficient. Requesting the difference between two previously cached files — using
Fast and precise type checking for JavaScript | the morning paper
the morning paper a random walk through Computer Science research, by Adrian Colyer Made delightfully fast by strattic Fast and precise type checking for JavaScript Chaudhuri et al., OOPSLA’17 In this paper we present the design and implementation of Flow, a fast and precise type checker for JavaScript that is used by thousands of developers on millions of lines of code at Facebook every day. In a
CBCTF SSR Writeup
cbctf_ssr.md CBCTF SSR Writeup ゲームのようなアプリケーション。ざっと大まかな動作をみていく。 ガチャを回すとアイドルを入手できる。 ガチャの際、サーバへのアクセスは発生しない(=ガチャはクライアントサイドのみで完結) 入手したアイドルはidolsという名前のCookieで記録。 レア度"SSR"のアイドル"Uzuki"を引いた場合のCookieは次のようになった： [{"key":["ssr","0"]}] リロードしてレスポンス内容をみると、入手したUzukiのデータがHTMLに直接含まれていた(=Cookieを見てサーバサイドで入手済みのキャラクターを返している様子) 入手したアイドルには次のように連番で個別のページが作られる： http://ssr.tasks.ctf.codeblue.jp/idols/0 個別のページでは、次のようなURLのvoic
Basic concepts of flexbox - CSS: Cascading Style Sheets | MDN
CSS Tutorials CSS basics CSS first steps CSS first steps overview What is CSS? Getting started with CSS How CSS is structured How CSS works Assessment: Styling a biography page CSS building blocks CSS building blocks overview CSS selectors Type, class, and ID selectors Attribute selectors Pseudo-classes and pseudo-elements Combinators Cascade, specificity, and inheritance Cascade layers The box mo
Google グループ
Google グループでは、オンライン フォーラムやメール ベースのグループを作成したり、こうしたフォーラムやグループに参加したりすることで、大勢のユーザーと情報の共有やディスカッションを行うことができます。
Release Notes for Safari Technology Preview 45 | WebKit
Safari Technology Preview Release 45 is now available for download for macOS Sierra and macOS High Sierra. If you already have Safari Technology Preview installed, you can update from the Mac App Store’s Updates tab. This release covers WebKit revisions 224579-225266. If you recently updated from macOS Sierra to macOS High Sierra, you may need to install the High Sierra version of Safari Technolog
A Classic Extension Reborn: Tree Style Tab – Mozilla Hacks - the Web developer blog
Yuki “Piro” Hiroshi is a trailblazer and a true do-it-yourselfer. Whenever the Tokyo-based programmer gets irritated with any aspect of his browsing experience, he builds a workaround for himself and shares it with others. After authoring nearly 100 browser extensions, Piro recently took on his biggest challenge yet: migrating the legacy Tree Style Tab (TST) extension to work with the new WebExten
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GitHub - Nike-Inc/burnside: Fast and Reliable E2E Web Testing with only Javascript
Grow with the browser, learn web component fundamentals.
Vidyo and RTC in 2018
Cory House on Twitter: "Tip: With async/await, you can run multiple async operations in parallel. How? Put the await statements on the same… https://t.co/ewRwzVKMwv"
Feature detect ES modules: both static import and dynamic import()
Video: Web Accessibility Standards and Benefits
Intent to ship WebRTC RTCRtpReceiver contributing and synchronization sources