CSS content-visibility
The CSS language is full of small gaps which are frustrating to navigate. Between CSS properties to hide a container and its contents, there is still room for improvement. visibility: hidden keeps height and width integrity while display: none on a container hides everything. You can use .container > * to hide all contents of a container, but what if there was a better way?
There is a better way to hide the contents of an element while respecting the container's border and dimensions. That better way is using the content-visibility property:
.my-container.contents-loading {
content-visibility: hidden;
}
A demo of such functionality:
See the Pen
Untitled by David Walsh (@darkwing)
on CodePen.
Avoiding a .container > * selector by using content-visibility: hidden is so much nicer from a maintenance perspective!
![7 Essential JavaScript Functions]()
I remember the early days of JavaScript where you needed a simple function for just about everything because the browser vendors implemented features differently, and not just edge features, basic features, like addEventListener and attachEvent. Times have changed but there are still a few functions each developer should...
![9 More Mind-Blowing WebGL Demos]()
With Firefox OS, asm.js, and the push for browser performance improvements, canvas and WebGL technologies are opening a world of possibilities. I featured 9 Mind-Blowing Canvas Demos and then took it up a level with 9 Mind-Blowing WebGL Demos, but I want to outdo...
![Dynamically Create Charts Using MooTools MilkChart and Google Analytics]()
The prospect of creating graphics charts with JavaScript is exciting. It's also the perfect use of JavaScript -- creating non-essential features with unobtrusive scripting. I've created a mix of PHP (the Analytics class), HTML, and MooTools JavaScript that will connect to Google Analytics...
![Create Snook-Style Navigation Using MooTools]()
Jonathan Snook debuted a great tutorial last September detailing how you can use an image and a few jQuery techniques to create a slick mouseover effect. I revisited his article and ported its two most impressive effects to MooTools.
The Images
These are the same...
I’ve found that it can cause accessibility issues and false problems in Lighthouse reports. But that’s
content-visibility: auto.For example, I have large white text on a black background in a footer, but I think Chrome doesn’t properly test/paint it/something because it says all text has insufficient contrast ratio (it has a ratio of like 12). Screen readers also seem to be problematic, though I can’t say exactly what’s going on there.