---
title: "This Week's HTML5 and Browser Technology News (Issue 246)"
publication: "Frontend Focus"
issue: 246
published_at: "2016-06-29"
canonical_url: "https://frontendfoc.us/issues/246"
---
This Week's HTML5 and Browser Technology News (Issue 246)
[Read this e-mail on the Web](http://frontendfoc.us/issues/246)
Frontend FocusIssue 246 — June 29, 2016[The Languages Which Almost Became CSS](https://eager.io/blog/the-languages-which-almost-were-css/?utm_source=frontendfocus&utm_medium=email)A enjoyable essay looking at technologies and approaches that were proposed for styling Web documents before CSS became the firm favorite. Zack Bloom
[Content Jumping (and How To Avoid It)](https://css-tricks.com/content-jumping-avoid/?utm_source=frontendfocus&utm_medium=email)“Few things are as annoying on the web as having the page layout unexpectedly change or shift while you’re trying to view or interact with it.” Brandon Smith
[A Single Div: A CSS Drawing Project](http://a.singlediv.com/?utm_source=frontendfocus&utm_medium=email)Detailed, elegant icons rendered with CSS upon just one div element. (You’ll want to open your browser's element inspector to dig into these.) Lynn Fisher
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[Improved Font Loading in Webkit](https://webkit.org/blog/6643/improved-font-loading/?utm_source=frontendfocus&utm_medium=email)“Many fonts are large, causing a long delay until the browser can use them. WebKit has mitigated this.” Myles Maxfield
[Image Replacement Techniques in the Modern Age](https://www.sitepoint.com/image-replacement-techniques-in-the-modern-age/?utm_source=frontendfocus&utm_medium=email)Baljeet Rathi explains the various CSS image replacement techniques available to web developers today and their pros and cons. Baljeet Rathi
[Three Real-World Uses for Mutation Observer](https://eager.io/blog/three-real-world-use-cases-for-mutation-observer/?utm_source=frontendfocus&utm_medium=email)Mutation Observer is a feature, supported by all modern browsers, that let you detect when elements in a page are inserted, changed or removed. Zack Bloom
[Everything You Could Want to Know About The Referer Header](https://blog.fastmail.com/2016/06/20/everything-you-could-ever-want-to-know-and-more-about-controlling-the-referer-header/?utm_source=frontendfocus&utm_medium=email)What is the Referer header and how can you control its presence (or lack thereof)? A handy resource for security-minded Web developers. Neil Jenkins
[An Introduction to Website Animation with Velocity.js](https://spin.atomicobject.com/2016/06/23/web-animation-velocity-js/?utm_source=frontendfocus&utm_medium=email)A quick walkthrough of building your first animation with Velocity.js to animate a list. Includes a CodePen example. Bryan Elkus
[The 14 Most Popular CSS Links of 2016 So Far](https://medium.com/statuscode/the-14-most-popular-css-links-of-2016-so-far-96a6e64378d5?utm_source=frontendfocus&utm_medium=email)We’ve taken a look through all the stats from HTML5 Weekly published so far in 2016 and collected the most popular CSS links we shared. Chris Brandrick
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In Brief
[Dreamweaver Is Back for Us, Coders](https://medium.com/@helloanselm/dreamweaver-is-back-for-us-coders-2a1be75ae595?utm_source=frontendfocus&utm_medium=email) news
A look at the beta of Adobe’s refreshed code editor, Dreamweaver.
Anselm Hannemann
[D3.js 4.0 Released: The Popular Data Visualization Library](https://github.com/d3/d3/releases/tag/v4.0.0?utm_source=frontendfocus&utm_medium=email) news
D3
[HTML5 Ads Aren't That Safe Compared to Flash, Experts Say](http://news.softpedia.com/news/html5-ads-aren-t-that-safe-compared-to-flash-study-reveals-505597.shtml?utm_source=frontendfocus&utm_medium=email) news
Catalin Cimpanu
[Apple Releases Safari 10 Developer Beta for OS X Yosemite and El Capitan](http://www.macrumors.com/2016/06/23/safari-10-developer-beta-yosemite-el-capitan/?utm_source=frontendfocus&utm_medium=email) news
MacRumors
['Chrome does not respond dynamically to @media rules inside @supports'](https://thatemil.com/blog/2016/06/20/enquire-within-upon-media/?utm_source=frontendfocus&utm_medium=email) news
Emil Björklund
[Contextual Identities on the Web in Firefox Nightly](https://blog.mozilla.org/tanvi/2016/06/16/contextual-identities-on-the-web/?utm_source=frontendfocus&utm_medium=email) news
Tanvi Vyas
[New Good Parts of JavaScript and the Web Course](https://frontendmasters.com/courses/good-parts-javascript-web/?utm_source=frontendfocus&utm_medium=email) rawurl
Douglas Crockford greatly expands JavaScript the Good Parts with more programming challenges, ES6, async, how web browsers work, web security and more.
Frontend MastersSponsor
[Don't Overthink Flexbox Grids](http://css-tricks.com/dont-overthink-flexbox-grids/?utm_source=frontendfocus&utm_medium=email) tutorial
Vanilla, framework-free grids are easy-peasy with Flexbox.
Chris Coyier
[Form Design: How to Automatically Format User Input](http://webdesign.tutsplus.com/tutorials/auto-formatting-input-value--cms-26745?utm_source=frontendfocus&utm_medium=email) tutorial
Learn how to format, real time, user input in a form field.
Thoriq Firdaus
[Building Better Accessibility Primitives](http://robdodson.me/building-better-accessibility-primitives/?utm_source=frontendfocus&utm_medium=email) tutorial
A look at ARIA and HTML in relation to modals and disabling tabindex.
Rob Dodson
[Drawing Waveforms with the Web Audio API and SVG](https://robots.thoughtbot.com/javascript-audio-api?utm_source=frontendfocus&utm_medium=email) tutorial
Matt Sumner
[Build Your First Thing With WebAssembly](http://cultureofdevelopment.com/blog/build-your-first-thing-with-web-assembly/?utm_source=frontendfocus&utm_medium=email) tutorial
Nick Larsen
[The Landscape of Front-End Testing](https://vimeo.com/album/3953264/video/165995134?utm_source=frontendfocus&utm_medium=email) video
Alicia Sedlock
[A Different Approach](http://www.launchbit.com/taz/11157-6455-111?utm_source=frontendfocus&utm_medium=email) rawurl tools
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PageCloudSponsor
[Tool to Draw Pixel Art, Get CSS Back](http://pixelart.jvrpath.com/?utm_source=frontendfocus&utm_medium=email) tools
Javier Valencia Romero
[Algolia Places: Address Autocompletion for 'input' Fields](https://github.com/algolia/places?utm_source=frontendfocus&utm_medium=email) tools code
There’s a [full intro post](https://blog.algolia.com/introducing-algolia-places/) too.
Algolia
[Tridiv: A Web-Based Tool for Creating 3D Shapes with CSS](http://tridiv.com/?utm_source=frontendfocus&utm_medium=email) tools
Julian Garnier
[Vidage: Full-Screen Background Video and Image Library](https://github.com/dvLden/Vidage?utm_source=frontendfocus&utm_medium=email) code
Automatically switches the video for a fallback image on small/touch devices.
Nenad Novaković
[griddy.css: A Simple, Responsive 12 Column Based Grid in ~1KB](https://github.com/voronianski/griddy.css?utm_source=frontendfocus&utm_medium=email) code
Dmitri Voronianski
[gl-water2d: 2D Liquid Simulation with WebGL](https://github.com/Erkaman/gl-water2d?utm_source=frontendfocus&utm_medium=email) code
Eric Arnebäck
Curated by [Peter Cooper](http://twitter.com/peterc) and [Chris Brandrick](http://twitter.com/chrisbrandrick) and published by [Cooperpress](https://cooperpress.com/).
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