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Use a:visited in your CSS stylesheet


Evert Pot: Unfortunately, when setting a new color (e.g. a { color: #44F }) the ‘purple visited link’ feature also gets disabled. I think this is a shame, as there’s so many instances where you’re going through a list of links and want to see what you’ve seen before. The 2 examples I ran into...

What to Use Instead of Number Inputs


You might reach for <input type="number> when you're, you know, trying to collect a number in a form. But it's got all sorts of issues. For one, sometimes what you want kinda looks like a number, but isn't one (like how a credit card number has spaces), because it's really just a string...

Currying in CSS


Funny timing on this I was just looking at the website for Utopia (which is a responsive type project which I hate to admit I don't fully understand) and I came across some CSS they show off that looked like this: :root { --fluid-max-negative: (1 / var(--fluid-max-ratio)...

The 3 Laws of Serverless


Burke Holland thinks that to "build applications without thinking about servers" is a pretty good way to describe serverless, but... Nobody really thinks about servers when they are writing their code. I mean, I doubt any developer has ever thrown up their hands and said “Whoa, whoa, whoa. Wait...

Animating CSS Width and Height Without the Squish Effect


The first rule of animating on the web: don't animate width and height. It forces the browser to recalculate a bunch of stuff and it's slow (or "expensive" as they say). If you can get away with it, animating any transform property is faster (and "cheaper"). Butttt, transform can be tricky. Check...

Collective #595


Variable Fonts Primer * Cannon-es and use-cannon * Faux Code Generator * Learn Box Alignment Collective #595 was written by Mary Lou and published on Codrops

What React Does (and Doesn’t Do)


With a name as big as React, it's bound to cause some Stream-Crossing Confusion, as I like to call it. How do you center a <div> in React? Dave Ceddia: React cares exactly zero about styling. Think of it as generating the barebones HTML. React will put elements on the page, but everything...

4 Ways to Animate the Color of a Text Link on Hover


Let’s create a pure CSS effect that changes the color of a text link on hover… but slide that new color in instead of simply swapping colors. There are four different techniques we can use to do this. Let’s look at those while being mindful of important things, like accessibility, performance,...

Considerations for Creating a Card Component


Here's a Card component in React: const Card = props ={ return( <div className="card"<h2{props.title}</h2<p{props.content}</p</div) } It might be pretty useful! If you end up using this thing hundreds of times, now you have the ability to refactor a little bit of HTML...

Unfortunately, clip-path: path() is Still a No-Go


I was extremely excited when I first heard that clip-path: path() was coming to Firefox. Just imagine being able to easily code a breathing box like the one below with just one HTML element and very little CSS without needing SVG or a huge list of points inside the polygon function! Chris...

Selectors Explained


Have you ever found yourself either writing a CSS selector that winds up looking confusing as heck, or seen one while reading through someone's code? That happened to me the other day. Here's what I wrote: .site-footer__nav a:hover svg ellipse:first-child { } At the end of it, I honestly couldn't...

HTML: The Inaccessible Parts


<input type="number", <input type="date", <input type="search", <select multiple, <progress, <meter, <dialog, <details<summary, <video, <div onclick, <div aria-label, <a href<divBlock Links</div</a, aria-controls...

When CSS Blocks


Tim Kadlec: One particular pattern [for loading non-critical CSS] I’ve seen is the preload/polyfill pattern. With this approach, you load any stylesheets as preloads instead, and then use their onload events to change them back to a stylesheet once the browser has them ready. So you're...

Chameleonic Header


Nice demo from Sebastiano Guerriero. When a fixed-position header moves from overlapping differently-colored backgrounds, the colors flop out to be appropriate for that background. Sebastiano's technique is very clever, involving multiple copies of the header within each section (where the copies...

In-Browser Performance Linting With Feature Policies


Here’s a neat idea from Tim Kadlec. He uses the Modheader extension to toggle custom headers in his browser. It also lets him see when images are too big and need to be optimized in some way. This is a great way to catch issues like this in a local environment because browsers will throw an error...

Fixed Headers and Jump Links? The Solution is scroll-margin-top


The problem: you click a jump link like <a href="#header-3">Jump</a> which links to something like <h3 id="header-3">Header</h3>. That's totally fine, until you have a position: fixed; header at the top of the page obscuring the header you're trying to link to! Fixed...

Inspiring high school students with HTML and CSS


Here’s a heartwarming post from Stephanie Stimac on her experience teaching kids the very basics of web development: [...] the response from that class of high school students delighted me and grounded me in a way I haven't experienced before. What I view as a simple code was absolute magic...

How to Find Your Nearest Bitcoin ATM


Cryptocurrency markets have experienced a few intensive weeks since the start of the year that took prices to 2020 highs in mid-February. The overall bullish sentiment is attracting more interest towards the crypto space. There are many ways to get started with Bitcoin but one the most accessible...

Animate SVG Path Changes in CSS


Every once in a while I'm motivated to attempt to draw some shapes with <path>, the all-powerful drawing syntax of SVG. I only understand a fragment of what it all can do, but I know enough to be dangerous. All the straight-line syntax commands (like L) are pretty straightforward and I find...

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