A Complete Guide to Data Attributes

I recently wrote an article explaining how you can create a countdown timer using HTML, CSS and JavaScript. Now, let’s look at how we can make that a reusable component by porting it into Vue using basic features that the framework provides.

Why do this at all? Well there are few reasons, but two stand out in particular:

• Keeping UI in sync with the timer state: If you look at the code from the first post,  it all lives in the timerInterval function, most noticeably the state management. Each time

Since I first chimed in on the CSS4¹ thing, there's been tons of more discussion on it. I'm going to round up my favorite thoughts from others here. There is an overwhelming amount of talk about this, so I'm going to distill it here down as far as I can, hopefully making it easier to follow.… Read article

The <details> and <summary> elements in HTML are useful for making content toggles for bits of text. By default, you see the <summary> element with a toggle triangle (▶︎) next to it. Click that to expand the rest of the text inside the <details> element.

But let's say you want to be able to click it open and that's that. Interactivity over. I saw this used in one of those "Read more" article designs, where you click that "Read more" … Read article

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

Our complete guide to links, buttons, and button-like inputs in HTML, CSS, and JavaScript.

Web development is always changing. One trend in particular has become very popular lately, and it fundamentally goes against the conventional wisdom about how a web page should be made. It is exciting for some but frustrating for others, and the reasons for both are difficult to explain.

A web page is traditionally made up of three separate parts with separate responsibilities: HTML code defines the structure and meaning of the content on a page, CSS code defines its appearance, … Read article