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Like Eric Bailey says, if it’s interactive, it needs a focus style. Perhaps your best bet? Don’t remove the dang outlines that focusable elements have by default. If you’re going to rock a button { outline: 0; }, for example, then you’d better do a button:focus { /* something else very obvious visually */ }. I handled a ticket just today where a missing focus style was harming a user who relies on visual focus styles to …

The post Keyboard-Only Focus Styles appeared first on CSS-Tricks.

With the introduction of dark mode in macOS, Safari Technology Preview 68 has released a new feature called prefers-color-scheme which lets us detect whether the user has dark mode enabled with a media query.

That’s right. If this becomes a little bit more supported in other browsers, then we might potentially soon have a way to toggle on night modes with a few lines of CSS!

Recently Mark Otto described how we can start using prefers-color-scheme today in order …

The post Dark modes with CSS appeared first on CSS-Tricks.

JavaScript and images tend to get the bulk of the blame for slow websites, but Harry explains very clearly why CSS is equally to blame and harder to deal with:

1. A browser can’t render a page until it has built the Render Tree;
2. the Render Tree is the combined result of the DOM and the CSSOM;
3. the DOM is HTML plus any blocking JavaScript that needs to act upon it;
4. the CSSOM is all CSS rules applied against the DOM;

…

The post CSS and Network Performance appeared first on CSS-Tricks.