Modern Asynchronous CSS Loading

How to prioritize and streamline assets for fast, resilient delivery.

Swapping Images with the Sizes Attribute

Responsive, JavaScript-enhanced image magnifier component.

“It’s easier to make a fast website than it is to keep a website fast.”

Inlining or Caching? Both Please!

How to to avoid a longstanding drawback of inlining files.

Styling a Select Like It's 2019

Nowadays, you can style a ‘select’ pretty nicely with CSS.

The Simplest Way to Load CSS Asynchronously

A simple HTML approach may be all you need.

5G Will Definitely Make the Web Slower, Maybe

What an average person can expect from 5G.

“If you’re having z-index problems I feel bad for you son, I’ve got 999999999999999999999999999999999999999999999999999999999999999999999999999999 and it seems to work alright on my machine.”

ASPIRE: Ideals to Aspire to When Building Websites

The meaning of the acronym ASPIRE.

We need more inclusive web performance metrics

It‘s wrong to optimize for visual clues at the expense of others.

Modal

A simple, accessible modal dialog web component.

“The modern web dev is an extreme overreaction to not liking some php.”

HTML Video Sources Should Be Responsive

Removing ‘media’ support from HTML video was a mistake.

“More’s Law: Websites will continuously add more JavaScript to neutralize the performance improvements predicted by Moore’s Law.”

“As a courtesy to others on the website, please remember to click the Read Less button after you are finished reading more.”

“I know of no better way to catch up after some time away than RSS.”

Color picker

A useful little app in just one line of HTML.

“Instead of thinking about web design in terms of ‘mobile’ or ‘desktop’ we should think about layout as a ‘continuum,’ where mobile and desktop may be at the extremes.”

Will serving real HTML content make a website faster?

“It can be one of the best things you can do for a site’s performance.”

“Some of these websites’ skeleton loading pages should add some hold music.”

How fast is your web app?

How to test page transition performance in WebPageTest.