Skip to main content

Ana Tudor

Mad scientist.

Article

When Sass and New CSS Features Collide

Recently, CSS has added a lot of new cool features such as custom properties and new functions. While these things can make our lives a lot easier, they can also end up interacting with preprocessors, like Sass, in funny ways.

So this is going to be a post about the issues I’ve encountered, how I go around them, and why I still find Sass necessary these days.… Read article “When Sass and New CSS Features Collide”

Article

Cool Little CSS Grid Tricks for Your Blog

I discovered CSS about a decade ago while trying to modify the look of a blog I had created. Pretty soon, I was able to code cool things with more mathematical and, therefore, easier-to-understand features like transforms. However, other areas of CSS, such as layout, have remained a constant source of pain.

This post is about a problem I encountered about a decade ago and, until recently, did not know how to solve in a smart way. Specifically, it’s about … Read article “Cool Little CSS Grid Tricks for Your Blog”

Article

Background Patterns, Simplified by Conic Gradients

For those who have missed the big news, Firefox now supports conic gradients!

Starting with Firefox 75, released on the April 7, we can go to about:config, look for the layout.css.conic-gradient.enabled flag and set its value to true (it’s false by default and all it takes to switch is double-clicking it).

Enabling conic gradients in Firefox 75+

With that enabled, now we can test our CSS including conic gradients in Firefox as well.… Read article “Background Patterns, Simplified by Conic Gradients”

Article

Adventures in CSS Semi-Transparency Land

Recently, I was asked to make some tweaks to a landing page and, among the things I found in the code, there were two semitransparent overlays — both with the same RGB values for the background-color — on top of an image. Something like this:

<img src='myImage.jpg'/>
<div class='over1'></div>
<div class='over2'></div>

There was no purpose to having two of them other than the fact that having just one didn’t tint the image enough. For some reason, whoever initially coded that … Read article “Adventures in CSS Semi-Transparency Land”

Article

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 was excited about the initial implementation, too.

How fun would this be:

Breathing box.

I decided to give it a try. I went on CodePen, dropped a <div>Read article “Unfortunately, clip-path: path() is Still a No-Go”

Article

Weaving a Line Through Text in CSS

Earlier this year, I came across this demo by Florin Pop, which makes a line go either over or under the letters of a single line heading. I thought this was a cool idea, but there were a few little things about the implementation I felt I could simplify and improve at the same time.… Read article “Weaving a Line Through Text in CSS”

Article

While You Weren’t Looking, CSS Gradients Got Better

One thing that caught my eye on the list of features for Lea Verou’s conic-gradient() polyfill was the last item:

Supports double position syntax (two positions for the same color stop, as a shortcut for two consecutive color stops with the same color)

Surprisingly, I recently discovered most people aren’t even aware that double position for gradient stops is something that actually exists in the spec, so I decided to write about it.

According to the spec:

Specifying two

Read article “While You Weren’t Looking, CSS Gradients Got Better”
Article

Multi-Thumb Sliders: General Case

Read article “Multi-Thumb Sliders: General Case”
Article

Multi-Thumb Sliders: Particular Two-Thumb Case

This is a concept I first came across a few years back when Lea Verou wrote an article on it. Multi-range sliders have sadly been removed from the spec since, but something else that has happened in the meanwhile is that CSS got better — and so have I, so I recently decided to make my own 2019 version.

In this two-part article, we’ll go through the how, step-by-step, first building an example with two thumbs, then identify the issues … Read article “Multi-Thumb Sliders: Particular Two-Thumb Case”

Article

Logical Operations with CSS Variables

Very often, while using switch variables (a variable that’s either 0 or 1, a concept that’s explained in a greater detail in in this post), I wish I could perform logical operations on them. We don’t have functions like not(var(--i)) or and(var(--i), var(--k)) in CSS, but we can emulate these and more with arithmetic operations in a calc() function.

This article is going to show you what calc() formulas we need to use for each logical operation and … Read article “Logical Operations with CSS Variables”