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I’m willing to bet you know WebPageTest. It is the premier tool in the toolbox of web performance people. Maybe you didn’t know that WebPageTest was a side project of one fella, Patrick Meenan, for most of its lifetime, with literal racks of real devices he maintained himself. An amazing achievement, to be sure, but …

Yay, it’s here! Safari 14.1 reportedly adds support for the gap property in flexbox layouts. We’ve had grid-gap support for some time, but true to its name, it’s limited to grid layouts. Now we can use gap in either type of layout:

Jim Nielsen quoting Eric Bailey: He references an example on Twitter where someone noted you can use the <details> element to “create a native HTML accordion,” to which someone responded: “this works without Bootstrap? 🤯” What’s the problem here? From Eric: the problem that arises from this situation is that it teaches people to think …

Jenny B Kowalski has been posting a-letter-a-day on Instagram exploring multi-axis variable/responsive letterforms. They are very clever in that one of the axes controls an uppercase-to-lowercase conversion, literally morphing the shape of the letters from an uppercase version to a lowercase version. The other axis is a stroke weight, which also dramatically changes the feel …

Labels are a feature that have existed since the creation of JavaScript. They aren’t new! I don’t think all that many people know about them and I’d even argue they are a bit confusing. But, as we’ll see, labels can be useful in very specific instances. But first: A JavaScript label should not be confused …

I’ve got a podcast that will be 10 years old this coming January! Most of those episodes have one or more guests (plus me and Dave). Despite fancy modern options for recording podcasts with guests, like Riverside.fm or Zencastr where guests don’t have to worry about recording their own audio, we haven’t made the leap …

Raygun is an error and performance monitoring software for websites and mobile apps. In the case of websites, you install their JavaScript snippet onto your site, which takes 2 seconds, and now you’ve got monitoring in place. Why? Well now you can watch the performance of your site, not just in a single report of …

Šta su git submoduli? Submoduli su projekti (najčešće neke biblioteke) koji su ubačeni u neki drugi projekat, nakon čega su u tom tzv. “glavnom” projektu dostupni svi fajlovi submodula. Git subdmoduli nam omogućavaju da koristimo dva ili više repozitorijuma kao da su jedno. Svaki repozitorijum održava svoju zasebnu istoriju promena pa se čak subdmoduli ažuriraju …

Lists—we’ve all worked with them in one form or another. I’m talking about HTML’s <ol> and <ul>. Much of the time, because we desire styling control, we turn off the list’s markers completely with list-style-type: none, and start styling from there. Other times, we choose from a very limited set of unordered list markers, such …

This post was written for engineering managers, but anyone is welcome to read it. Let’s talk for a moment about how we talk about our teams. This might not seem like something that needs a whole article dedicated to it, but it’s actually quite crucial. The way that we refer to our teams sends signals: …

Click, drag, release: you’ve just selected some text on a webpage — probably to copy and paste it somewhere or to share it. Wouldn’t it be cool if selecting that text revealed some options that make those tasks easier? That’s what a selection menu does. You may already be familiar with selection menus if you’ve ever used …

I was just Hoping for Better Native Page Transitions, and Bramus commented that Chrome is working on something. Looks like it has some fresh enthusiasm for it, as there is a brand new repo, and you can literally test it in Chrome Canary.

Everything important and useful to know about CSS Custom Properties. Like that they are often referred to as “CSS Variables” but that’s not their real name.

I saw in the release notes for Safari Technical Preview 122 that it has support for a color-contrast() function in CSS. Safari is first out of the gate here. As far as I know, no other browser supports this yet and I have no idea when stable Safari will ship it, or if any other …

I love to make CSS do stuff it shouldn’t. It’s the type of problem-solving brain training you’d get building a calculator in Minecraft, except you probably won’t get a job working with Minecraft Redstone no matter how good you get at that, whereas CSS skills are worth actual money, and many generalist programmers are scared …

Robert Nyman and Philip Jägenstedt: Google is working with other browser vendors and industry partners to fix the top five browser compatibility pain points for web developers. The areas of focus are CSS Flexbox, CSS Grid, position: sticky, aspect-ratio, and CSS transforms. … The goal in 2021 is to eliminate browser compatibility problems in five key focus …

In my previous article, I discussed how I learned to create a decoupled WordPress powered Gatsby site using the Gatsby Source WPGraphQL plugin. The project was done following the ongoing developmental version of WPGraphQL and an excellent tutorial by Henrik Wirth. Although WPGraphQL was used in some production sites at that time, there were lot …

There are some Unicode characters that some browsers just decide they are going to turn into emojis for you. I couldn’t tell you why exactly, but here’s what I see:

Here’s Jess B. Peck writing all about Google’s Core Web Vitals: Let’s step back one. CLS is when you’re about to click on a link, and the whole page shifts and you click on a different link instead. It’s when you’re halfway through a blogpost and an ad loads and you lose your place. It …

Try Hotjar for free today! An enjoyable user experience and high conversion rates go hand-in-hand. It makes sense then, that if you want to improve conversion rates, your first task is to improve user experience. To improve UX, deeply understanding your users is non-negotiable. But speaking with customers one by one to figure out their …

Not a typical one, at least. Each character is an HTML element, built with CSS. A true web font! Let me elaborate. This is a way to render text without using any font at all. Random text is split with PHP into words and letters, then rendered as HTML elements with classes. Every element is …

It would be nice to be able to animate the transition between pages if we want to on the web without resorting to hacks or full-blown architecture choices to achieve it. I could imagine an API that would run stuff, perhaps integrating with WAAPI, before the page is unloaded, and other stuff after the next …

Page Laubheimer says that if you’re going to do a sticky header… Keep it small. Visually contrast it with the rest of the page. If it’s going to move, keep it minimal. (I’d say, respect prefers-reduced-motion.) Consider “partially persistent headers.” (Jemima Abu calls it a Smart Navbar.) Actually, maybe don’t even do it.

Let’s say someone asks you to add a double border to some random geometric SVG shapes. For some reason, you can’t use any graphic editor — they need to be generated at runtime — so you have to solve it with CSS or within the SVG syntax. Your first question might be: Is there anything like stroke-style: double in …

The way we style text hasn’t changed much over the years. There have been numerous advancements to help make things more flexible, like layouts, but in terms of styling, most finite aspects of our designs, like text, remain relatively unchanged. This is especially true of text styling. We write code to style text explicitly for …

Container queries are finally here! Now available behind a flag in the latest version of Chrome Canary, you can go ahead and experiment to your heart’s content. Oh, and if you’re not familiar with container queries then check out this post by Ethan Marcotte about why they’re so dang important.

There is no doubt that CSS plays a huge role in web performance. Milica Mihajlija puts a point on exactly why: When there is CSS available for a page, whether it’s inline or an external stylesheet, the browser delays rendering until the CSS is parsed. This is because pages without CSS are often unusable. The browser …

Need to lay out an element to the right or the left, such that text wraps around it? That’s an easy task for the float property. But what about if you also want to push that element (let’s call it an image) to one of the bottom corners while we’re at it? Sounds a bit …

When I was working on a project that needed an editor component for source code, I really wanted a way to have that editor highlight the syntax its typed. There are projects like this, like CodeMirror, Ace, and Monaco, but they are all heavy-weight, full-featured editors, not just editable textareas with syntax highlighting like I …

There’s a whole lot of accessibility in this week’s news, from the nuances of using :focus-visible and input placeholders, to accessible typefaces and a Safari bug with :display: contents. Plus, a snippet for a bare-bones web component that supports style encapsulation.