Some creative ideas on small screens. The post lists examsle:

• Use horizontal scrolling
• Push elements off-canvas
• Build scrollable mini-spreadspread
• Orientation responsive layout

An example of semantic class names and a teaser on server of Kelp to have dynamic HTML through WebComponents.

Waayyy tooo coool checkboxes as switch

How CSS simplify scrollable images with

display: flex;
overflow-x: auto;
overscroll-behavior-inline: contain;
scroll-snap-type: inline mandatory;
scroll-behavior: smooth;

// On the images
scroll-snap-align: center;
 contain: size;
  place-self: stretch;
  object-fit: cover;

Tips and tricks for view transition

In my opinion, the best cases for implementing view transitions are as a way to draw attention to an element, convey movement, and help users remain in context.

Add it to all pages to apply a default cross fade transition.

@view-transition {
    navigation: auto;
}

Then mark similar content with the view-transition-name css property.

Custom view transitions can be made with ::view-transition-old, ::view-transition-new, ::view-transition-image-pair.
Full page transition can be done by marking :root.
These transitions should be set only when the media query prefers-reduced-motion is set to no-preference.

Use cases for inherit(). They can be good but I don't see a need currently

There are great animations of ease-in, ease-in-out, ease, spring and bounce. The latest two can not be animated with Bézier curves as other common animations.

To get spring and bounce effects, the linear() function can be used. The linear() function takes a set of numbers, with 0 representing the starting value and 1 representing the final value.

Easing wizard or the Linear() Easing Generator can help.

If JS fails to load, a keyframe remove the effect provided by JS in 2 seconds.

:root {
  --w: calc(100vw/1px); /* screen width  */
  --h: calc(100vh/1px); /* screen height */
  /*  The result is an integer without a unit! */
}

A version with better support:

:root {
  --w: calc(100vw/1px); /* screen width  */
  --h: calc(100vh/1px); /* screen height */
  /*  The result is an integer without a unit! */
}

::selection ans ::backdrop does not inherit from root. So :root does not guarantee the CSS variable. The html selector does not solve this.

There is currently no global context in CSS, but root is the best workaround currently.

This is going to catch a lot of people off-guard because I, like many others, expect CSS Custom properties defined on :root to just be available everywhere.

The following discussion is there https://github.com/w3c/csswg-drafts/issues/6641

To prevent a custom behavior on Safari Mobile

Rather than helping you build a sitewide design, readable.css provides a base default that is both sensible and beautiful.

For MacOS only
-webkit-font-smoothing: antialiased;

A great CSS reset

It's not available in Firefox yet.

CSS styling has no perfect solutions but tradeoffs between the different approaches. Choose the one that fits best to the project