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Managing Multiple Backgrounds with Custom Properties

15.7.2019
One cool thing about CSS custom properties is that they can be a part of a value. Let's say you're using multiple backgrounds to pull off a a design. Each background will have its own color, image, repeat, position, etc. It can be verbose! You have four images: body { background-position: ...

The Fight Against Layout Jank

11.7.2019
A web page isn't locked in stone just because it has rendered visually. Media assets, like images, can come in and cause the layout to shift based on their size, which typically isn't known in fluid layouts until they do render. Or fonts can load and reflow layout. Or XHRs can bring in more content...

Tips for rolling your own lazy loading

1.7.2019
You may have heard (or even issued the call) that “we can just use lazy loading!” when looking for a way to slim down a particularly heavy web page. Lazy loading is a popular technique for gradually requesting images as they come into view, rather than all at once after the HTML of the page...

How to Detect Text in Images

11.6.2019
Images are a great way to communicate without text but oftentimes images are used/abused to spread text within social media and advertisements. Text in images also presents an accessibility issue. The truth is that it’s important, for any number of reasons, to be able to detect text in image...

What if we got aspect-ratio sized images by doing almost nothing?

7.6.2019
Say you have an image you're using in an <img> that is 800x600 pixels. Will it actually display as 800px wide on your site? It's very likely that it will not. We tend to put images into flexible container elements, and the image inside is set to width: 100%;. So perhaps that image ends...

Do you need an ICON ONLY button without screwing up the accessibility?

3.6.2019
The first consideration is: do you really? If you can, having text next to your icons is proven over and over again to be the most accessible and clearest UX (see Apple's latest blunder). But if you need to (and I get it, sometimes you need to), Sara Soueidan and Scott O'Hara have a pair...

An Exercise Program for the Fat Web

30.5.2019
When I wrote about App-pocalypse Now in 2014, I implied the future still belonged to the web. And it does. But it's also true that the web has changed a lot in the last 10 years, much less the last 20 or 30. Websites have gotten a lot … fatter. While

Footnotes That Work in RSS Readers

17.5.2019
Feedbin is the RSS reader I'm using at the moment. I was reading one of Harry's blog posts on it the other day, and I noticed a nice little interactive touch right inside Feedbin. There was a button-looking element with the number one which, as it turned out, was a footnote. I hovered over it,...

A Deep Dive into Native Lazy-Loading for Images and Frames

15.5.2019
Today's websites are packed with heavy media assets like images and videos. Images make up around 50% of an average website's traffic. Many of them, however, are never shown to a user because they're placed way below the fold. What’s this thing about images being lazy, you ask? Lazy-loading...

A CSS Golfing Exercise

6.5.2019
Code golfing is a type of programming where the goal is to accomplish a task using as few bytes as possible. CSSBattle is a code golfing battleground where players complete to recreate target images using CSS and HTML. The rules are fairly simple: No external resources (sorry, no <img...

Native Lazy Loading

9.4.2019
IntersectionObserver has made lazy loading a lot easier and more efficient than it used to be, but to do it really right you still gotta remove the src and such, which is cumbersome. It's definitely not as easy as: <img src="celebration.jpg" loading="lazy" alt="..." /> Addy Osmani says...

Who has the fastest website in F1?

2.4.2019
Jake Archibald looks at the websites of Formula One race teams and rates their performance, carefully examining their images and digging into the waterfall of assets for each site: Trying to use a site while on poor connectivity is massively frustrating, so anything sites can do to make it less...

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