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Reducing motion with the picture element
31.5.2019
Here’s a bonafide CSS/HTML trick from Brad Frost and Dave Rupert where they use the <picture> element to switch out a GIF file with an image if the user has reduced motion enabled. This is how Brad goes about implementing that:
<picture>
<!-- This image will be loaded if...
Type Conversion with JavaScript Arrays
7.5.2019
JavaScript’s loose nature allows developers to employ amazing tricks to do just about anything you’d like. I’ve detailed how you can filter falsy values in arrays using a filter(Boolean) trick, but reader David Hibshman shared another trick for typecasting array values the same...
Get a CSS Custom Property Value with JavaScript
11.4.2019
Here’s a neat trick from Andy Bell where he uses CSS Custom Properties to check if a particular CSS feature is supported by using JavaScript.
Basically, he's using the ability CSS has to check for browser support on a particular property, setting a custom property that returns a value of either...
Smooth Scrolling for Screencasts
13.3.2019
Let's say you wanted to scroll a web page from top to bottom programmatically. For example, you're recording a screencast and want a nice full-page scroll. You probably can't scroll it yourself because it'll be all uneven and jerky. Native JavaScript can do smooth scrolling. Here's a tiny snippet...
CSS Triangles, Multiple Ways
5.3.2019
I like Adam Laki's Quick Tip: CSS Triangles because it covers that ubiquitous fact about front-end techniques: there are always many ways to do the same thing. In this case, drawing a triangle can be done:
with border and a collapsed element
with clip-path: polygon()
with transform: rotate()...
Control Icons with Font Size
27.2.2019
Here’s a nifty trick from Andy Bell that now seems a little obvious in hindsight: if you set an SVG to have a width and height of 1em then you can change the size of it with the font-size property.
Try and change the font-size on the body element below to see the icon scale with the text:
...
Toggling Animations On and Off
9.1.2019
A nicely detailed tutorial by Kirupa that gets into how you might provide a UI with persisted options that control whether animations run or not.
The trick is custom properties that control the movement:
body {
--toggle: 0;
--playState: "paused";
}
Which are used within animations...
DRY State Switching With CSS Variables: Fallbacks and Invalid Values
6.12.2018
This is the second post in 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. The first installment walks through various use cases where this technique applies. This post...
DRY Switching with CSS Variables: The Difference of One Declaration
5.12.2018
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...
Clearfix: A Lesson in Web Development Evolution
3.7.2018
The web community has, for the most part, been a spectacularly open place. As such, a lot of the best development techniques happen right out in the open, on blogs and in forums, evolving as they’re passed around and improved. I thought it might be fun (and fascinating) to actually follow this...
Centering: The Newest Coolest Way vs. The Oldest Coolest Way
20.6.2018
This isn't a comprehensive guide to centering things. We have that!
This is just a little observation about old and new. One of the trickier things related to centering in CSS is when you need to center both vertically and horizontally and you don't know the width or height of what you...
Build Multiple Stacking Sticky Sidebars with Pure CSS and Bootstrap 4
31.5.2018
Making high performant, pure CSS sticky sidebars that stack with Bootstrap 4.
This will be a quick and pretty cool tutorial on a neat trick on how to have m
Custom List Number Styling
18.5.2018
How about a classic CSS trick! This isn't even so tricky anymore, since CSS has counter-increment and counter-reset and such that is perfect for this. I just wanted to make sure you knew how it works and had some easy-to-copy examples at the ready.
Let's say all you wanna do is style the dang...
Collective #413
7.5.2018
Brusher * Pin Screen * Impact * Inspecting Animations in DevTools * My most useful RegExp trick * No Lick * illustration.tools
Collective #413 was written by Pedro Botelho and published on Codrops