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Ana Tudor

Mad scientist.

Article

DRY Switching with CSS Variables: The Difference of One Declaration

This is the first post of a two-part series that looks into the way CSS variables can be used to make the code for complex layouts and interactions less difficult to write and a lot easier to maintain. This first installment walks through various use cases where this technique applies. The second post covers the use of fallbacks and invalid values to extend the technique to non-numeric values.

What if I told you a single CSS declaration makes the difference … Read article

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Simple Interactive Pie Chart with CSS Variables and Houdini Magic

I got the idea for doing something of the kind when I stumbled across this interactive SVG pie chart. While the SVG code is as compact as it gets (a single <circle></circle> element!), using strokes for creating pie chart slices is problematic as we run into rendering issues on Windows for Firefox and Edge. Plus, in 2018, we can accomplish a lot more with a lot less JavaScript!

I managed to get the following result using a single HTML … Read article

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1 Element CSS Rainbow Gradient Infinity

I first got the idea to CSS something of the kind when I saw this gradient infinity logo by Infographic Paradise. The gradient doesn't look like in the original illustration, as I chose to generate the rainbow logically instead of using the Dev Tools picker or something like that, but other than that, I think I got pretty close—let's see how I did that!
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The State of Changing Gradients with CSS Transitions and Animations

Back in 2012, Internet Explorer 10 came out and, among other things, it finally supported CSS gradients and, in addition to that, the ability to animate them with just CSS! No other browser supported this at the time, but I was hopeful for the future.

Sadly, six years have passed and nothing has changed in this department. Edge supports animating gradients with CSS, just like IE 10 did back then, but no other browser has added support for this. And … Read article

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1 HTML Element + 5 CSS Properties = Magic!

Let's say I told you we can get the results below with just one HTML element and five CSS properties for each. No SVG, no images (save for the background on the root that's there just to make clear that our one HTML element has some transparent parts), no JavaScript. What would you think that involves?… Read article

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Simple Swipe with Vanilla JavaScript

I used to think implementing swipe gestures had to be very difficult, but I have recently found myself in a situation where I had to do it and discovered the reality is nowhere near as gloomy as I had imagined.

This article is going to take you, step by step, through the implementation with the least amount of code I could come up with. So, let's jump right into it!… Read article

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Scooped Corners in 2018

When I saw Chris' article on notched boxes, I remembered that I got a challenge a while ago to CSS a design like it, but with rounded, scooped corners instead. So, let's see how we can do it that way instead and expand it to multiple corners while being mindful of browser support.
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What Houdini Means for Animating Transforms

I've been playing with CSS transforms for over five years and one thing that has always bugged me was that I couldn't animate the components of a transform chain individually. This article is going to explain the problem, the old workaround, the new magic Houdini solution and, finally, will offer you a feast of eye candy through better looking examples than those used to illustrate concepts.… Read article

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Using Conic Gradients and CSS Variables to Create a Doughnut Chart Output for a Range Input

I recently came across this Pen and my first thought was that it could all be done with just three elements: a wrapper, a range input and an output. On the CSS side, this involves using a conic-gradient() with a stop set to a CSS variable.… Read article

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Simplifying the Apple Watch Breathe App Animation With CSS Variables

When I saw the original article on how to recreate this animation, my first thought was that it could all be simplified with the use of preprocessors and especialy CSS variables. So let's dive into it and see how!… Read article