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Chris Coyier

Founder, writer, designer, spam-deleter, email personality


Animate SVG Path Changes in CSS

Every once in a while I'm motivated to attempt to draw some shapes with <path>, the all-powerful drawing syntax of SVG. I only understand a fragment of what it all can do, but I know enough to be dangerous. All the straight-line syntax commands (like L) are pretty straightforward and I find the curved Q command fairly intuitive. Box yourself into a viewBox="0 0 100 100" and drawing simple stuff doesn't seem so bad.… Read article


Footnote Characters

There are special superset number characters that are sometimes perfect for footnotes. Here they are:

¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹

I generally prefer to superscript the number myself, like:… Read article




Same HTML, Different CSS


Centering a div That Maintains Aspect-Ratio When There’s Body Margin

Andrew Welch had a little CSS challenge the other day to make an ordinary div:

• centered vertically + horizontally
• scales to fit the viewport w/ a margin around it
• maintains an arbitrary aspect ratio
• No JS

There's a video in that tweet if it helps you visualize the challenge. I saw Paul Bakaus blogging about this the other day, too, so it's a thing that comes up! … Read article


Solving Sticky Hover States with @media (hover: hover)


Web Component for a Code Block

We'll get to that, but first, a long-winded introduction.

I'm still not in a confident place knowing a good time to use native web components. The templating isn't particularly robust, so that doesn't draw me in. There is no state management, and I like having standard ways of handling that. If I'm using another library for components anyway, seems like I would just stick with that. So, at the moment, my checklist is something like:

  • Not using any other JavaScript
Read article

A Complete Guide to Data Attributes

Everything you ever wanted to know about data attributes in HTML, CSS, and JavaScript.

Blame the implementation, not the technique