"That verticality and the fact you can see through it, means users can establish hierarchy and depth of the interface. They simply see which layer is on top of which, just like pieces of virtual glass."
"The answer is, as with most matters: It depends. Depending on the type of content you're working with and the kind of information you're asking for, it could easily either be one checkbox or two radio buttons."
"Our well known mantra of axe-core is that we will treat false positives as bugs. If you find one and tell us about it, we will fix it. Axe-core is currently downloaded several million times every week, so even very rare types of bugs get reported."
"Gradients are typically one color that fades into another, but CSS allows you to control every aspect of how that happens, from the direction and the shape to the colors and how they transition from one to another."
"Some of the following shorthands are not new features for the browser, rather, easier ways to write styles by taking advantage of being able to set values on both block or inline edges at once. The inset-* logical properties do bring new abilities, as there were no longhand ways to specify absolute positions with logical properties before it."