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Of Course We Can Make a CSS-Only Clock That Tells the Current Time!
16.7.2021
Let’s build a fully functioning and settable “analog” clock with CSS custom properties and the calc() function. Then we’ll convert it into a “digital” clock as well. All this with no JavaScript!
Here’s a quick look at the clocks …
The post Of Course We Can Make a CSS-Only Clock That Tells...
Build Complex CSS Transitions using Custom Properties and cubic-bezier()
14.7.2021
I recently illustrated how we can achieve complex CSS animations using cubic-bezier() and how to do the same when it comes to CSS transitions. I was able to create complex hover effect without resorting to keyframes. In this article, I …
The post Build Complex CSS Transitions using Custom...
The Dilemma of Naming Font Size Variables
6.7.2021
Normally, a project will have a set of pre-determined font sizes, usually as variables named in such a way that seeks some semblance of order and consistency. Any project of considerable size can use something like that. There are always …
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Custom Property Brain Twisters
25.6.2021
I am part of that 82% that got the answer to Lea Verou's quiz wrong. Stephen Shaw posted a similar quiz as well and it's a fun exercise sharpen your CSS chops.
The post Custom Property Brain Twisters appeared first on CSS-Tricks. You can support CSS-Tricks by being an MVP Supporter
Drawing Graphics with the CSS Paint API
18.6.2021
A practical introduction to the CSS Paint API with hands-on examples.
The post Drawing Graphics with the CSS Paint API appeared first on Codrops
Are Custom Properties a “Menu of What Will Change”?
2.6.2021
PPK laid out an interesting situation in “Two options for using custom properties” where he and Stefan Judis had two different approaches for doing the same thing with custom properties. In one approach, hover and focus styles for a …
The post Are Custom Properties a “Menu...
Trigonometry in CSS and JavaScript: Getting Creative with Trigonometric Functions
2.6.2021
In the second part of this series on trigonometry, we’ll explore JavaScript trigonometric functions and learn how we can apply them to our CSS code.
The post Trigonometry in CSS and JavaScript: Getting Creative with Trigonometric Functions appeared first on Codrops
JSON in CSS
21.5.2021
Jonathan Neal tweeted a heck of a little CSS trick the other day, putting JSON inside CSS and plucking it out with JavaScript. Valid values for custom properties are quite liberal! So this looks for a CSS rule (e.g. a …
The post JSON in CSS appeared first on CSS-Tricks.
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Custom State Pseudo-Classes in Chrome
6.5.2021
There is an increasing number of “custom” features on the web platform. We have custom properties (--my-property), custom elements (<my-element>), and custom events (new CustomEvent('myEvent')). At one point, we might even get custom media …
The post Custom State Pseudo-Classes...
Dynamic CSS Masks with Custom Properties and GSAP
4.5.2021
Learn how to animate CSS masks based on the cursor position using GSAP and custom properties for a unique spotlight effect.
The post Dynamic CSS Masks with Custom Properties and GSAP appeared first on Codrops
A Complete Guide to Custom Properties
27.4.2021
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.
The post A Complete Guide to Custom Properties appeared first on CSS-Tricks.
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Generating (and Solving!) Sudokus in CSS
15.4.2021
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 …
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Image Fragmentation Effect With CSS Masks and Custom Properties
23.3.2021
Geoff shared this idea of a checkerboard where the tiles disappear one-by-one to reveal an image. In it, an element has a background image, then a CSS Grid layout holds the “tiles” that go from a filled background color to …
The post Image Fragmentation Effect With CSS Masks and Custom...
Exploring @property and its Animating Powers
4.3.2021
Uh, what’s @property? It’s a new CSS feature! It gives you superpowers. No joke, there is stuff that @property can do that unlocks things in CSS we’ve never been able to do before.
While everything about @property is exciting, …
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How to Map Mouse Position in CSS
1.3.2021
Let’s look at how to get the user’s mouse position and map it into CSS custom properties: --positionX and --positionY.
We could do this in JavaScript. If we did, we could do things like make make an element …
The post How to Map Mouse Position in CSS appeared first on CSS-Tricks.
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A DRY Approach to Color Themes in CSS
24.2.2021
The other day, Florens Verschelde asked about defining dark mode styles for both a class and a media query, without repeat CSS custom properties declarations. I had run into this issue in the past but hadn’t come up with a …
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Use CSS Variables instead of React Context
19.2.2021
Turns out you can use several different libraries to pass color information around components. Or, you could use custom properties, built right into CSS, have no decline in your own developer experience, and deliver a faster experience to your users. …
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CSS Switch-Case Conditions
17.2.2021
CSS is yet to have a switch rule or conditional if, aside from the specific nature of @media queries and some deep trickery with CSS custom properties. Let’s have a look at why it would be useful if we …
The post CSS Switch-Case Conditions appeared first on CSS-Tricks.
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useStateInCustomProperties
21.1.2021
In my recent “Custom Properties as State” post, one of the things I mentioned was that theoretically, UI libraries, like React and Vue, could automatically map the state they manage over to CSS Custom Properties so we could use that state …
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How to Play and Pause CSS Animations with CSS Custom Properties
21.1.2021
Let’s have a look CSS @keyframes animations, and specifically about how you can pause and otherwise control them. There is a CSS property specifically for it, that can be controlled with JavaScript, but there is plenty of nuance to get …
The post How to Play and Pause CSS Animations with...