New Web Features in Safari 9.1

New Web Features in Safari 9.1

Last week, a new version of Safari shipped with the release of iOS 9.3 and OS X El Capitan 10.11.4.

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CSS Variables in WebKit

CSS Variables in WebKit

Learn how CSS Variables helped reduce code complexity in Web Inspector for inspiration on how to make the most of them in your projects.

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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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