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Nalezeno "US Properties": 298

Line-Animated Hamburger Menu


This kind of SVG + CSS animation trickery is catnip to me. Mikael Ainalem shares how to draw a hamburger icon (the “three lines” thing you’re well familiar with), but then animate it in a way that is surprising and fun by controlling the SVG properties in CSS. CodePen Embed...

Using Custom Property “Stacks” to Tame the Cascade


Since the inception of CSS in 1994, the cascade and inheritance have defined how we design on the web. Both are powerful features but, as authors, we’ve had very little control over how they interact. Selector specificity and source order provide some minimal “layering” control...

Learn Z-Index Using a Visualization Tool


There are some neat interactive demos in here from Thiru Manikandan. There are a couple of very tricky things with z-index that never fail to confuse. In addition to things like requiring positioning and source order, the trickiest are the stacking contexts and parent/child relationships. z-index...

How to Get All Custom Properties on a Page in JavaScript


We can use JavaScript to get the value of a CSS custom property. Robin wrote up a detailed explanation about this in Get a CSS Custom Property Value with JavaScript. To review, let’s say we’ve declared a single custom property on the HTML element: html {   --color-accent: #00eb9b; } In JavaScript...

China Passes Law Protecting Cryptocurrency Inheritance


China has passed the country’s long-awaited civil code which expands the scope of inheritance rights to include cryptocurrency, such as bitcoin. Inherited cryptocurrencies will be protected under the new law. Meanwhile, several Chinese courts have recently ruled that bitcoin and ethereum...

Global CSS options with custom properties


With a preprocessor, like Sass, building a logical “do this or don’t” setting is fairly straightforward: $option: false; @mixin doThing { @if $option { do-thing: yep; } } .el { @include doThing; } Can we do that in native CSS with custom properties? Mark Otto shows...

A First Look at `aspect-ratio`


Oh hey! A brand new property that affects how a box is sized! That’s a big deal. There are lots of ways already to make an aspect-ratio sized box (and I’d say this custom properties based solution is the best), but none of them are particularly intuitive and certainly not...

The Fastest Google Fonts


When you use font-display: swap;, which Google Fonts does when you use the default &display=swap part of the URL , you’re already saying, “I’m cool with FOUT,” which is another way of saying web text is displayed right away, and when the web font is ready...

Unprefixed `appearance `


It’s interesting how third-parties are sometimes super involved in pushing browser things forward. One big story there was how Bloomberg hired Igalia to implement CSS grid across the browsers. Here’s another story of Bocoup doing that, this time for the appearance property. The story...

CSS Animation Timelines: Building a Rube Goldberg Machine


If you’re going to build a multi-step CSS animation or transition, you have a particular conundrum. The second step needs a delay that is equal to the duration of the first step. And the third step is equal to the duration of the first two steps, plus any delay in between. It gets more...

@property


The @property is totally new to me, but I see it’s headed to Chrome, so I suppose it’s good to know about! There is a draft spec and an “intent to ship” document. The code from that document shows: @property --my-property { syntax: "<color"; initial-value: green; ...

How to Make a CSS-Only Carousel


We mentioned a way to make a CSS-only carousel in a recent issue of the newsletter and I thought that a more detailed write up would be interesting and capture some of my thoughts on making one. So, here’s what we’re making today: There’s no JavaScript here, whatsoever! No jQuery plugins....

Creating Color Themes With Custom Properties, HSL, and a Little calc()


Before the advent of CSS custom properties (we might call them “variables” in this article as that’s the spirit of them), implementing multiple color schemes on the same website usually meant writing separate stylesheets. Definitely not the most maintainable thing in the world. Nowadays, though,...

CSS Scrollbar With Progress Meter


Scrollbars are natural progress meters. How far the scrollbar is down or across is how much progress has been made scrolling through that element (often the entire page). But, they are more like progress indicators than meters, if you think of a meter as something that “fills up” as...

Using CSS to Set Text Inside a Circle


You want to set some text inside the shape of a circle with HTML and CSS? That’s crazy talk, right? Not really! Thanks to shape-outside and some pure CSS trickery it is possible to do exactly that.  However, this can be a fiddly layout option. We have to take lots of different things into...

Getting JavaScript to Talk to CSS and Sass


JavaScript and CSS have lived beside one another for upwards of 20 years. And yet it’s been remarkably tough to share data between them. There have been large attempts, sure. But, I have something simple and intuitive in mind — something not involving a structural change, but rather putting...

Performant Expandable Animations: Building Keyframes on the Fly


Animations have come a long way, continuously providing developers with better tools. CSS Animations, in particular, have defined the ground floor to solve the majority of uses cases. However, there are some animations that require a little bit more work. You probably know that animations should...

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