Editing CSS with the Visual Styles Sidebar

Editing CSS with the Visual Styles Sidebar

For new and experienced web developers alike, CSS isn’t always the easiest to deal with.

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Introducing the B3 JIT Compiler

Introducing the B3 JIT Compiler

WebKit’s FTL JIT now uses a new backend on OS X — the Bare Bones Backend, or B3 for short, replaces LLVM as the low-level optimizer.

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CSS Font Features

CSS Font Features

Font features are a way to enable advanced text styles and effects as designed by the font author.

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10 Years of Web Inspector

10 Years of Web Inspector

Ten years ago today we introduced the first version of Web Inspector to the world — to commemorate the date, we put together a timeline of major events and blog posts for posterity.

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More Responsive Tapping on iOS

More Responsive Tapping on iOS

WebKit on iOS has a 350 millisecond delay before single taps activate links or buttons.

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Breakpoint Options

Breakpoint Options

Get more from the Debugger tab in Web Inspector: customizing breakpoints with conditions and actions for logging and executing scripts, and creating probe expressions.

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Targeting Domains with Content Blockers

Targeting Domains with Content Blockers

Content Blockers extensions are enjoying a tremendous success on iOS and Mac — especially domain-based blockers.

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Introducing Slot-Based Shadow DOM API

Introducing Slot-Based Shadow DOM API

We’re pleased to announce that basic support for the new slot-based shadow DOM API is now available in the nightly builds.

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ECMAScript 6 in WebKit

ECMAScript 6 in WebKit

In Safari 9 for OS X and iOS 9 you’ll be able to use some great ES6 features — there are even more you can try out if you run the nightly build.

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Web Inspector Keyboard Shortcuts

Web Inspector Keyboard Shortcuts

To help you become more efficient, Web Inspector includes keyboard shortcuts for many commonly used actions.

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Scroll Snapping with CSS Snap Points

Scroll Snapping with CSS Snap Points

WebKit now supports paginated scrolling through CSS Snap Points — making sophisticated paginated scrolling a snap.

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Introducing the Rendering Frames Timeline

Introducing the Rendering Frames Timeline

Web Inspector includes a new tool to help locate and resolve rendering performance issues — in addition to the familiar event-based timelines.

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