Yumma CSS 3.9
Introduction of negative values, new pseudo-class & pseudo-element variants, & expanded utility sets.

Breaking changes
This version introduces several significant updates & structural changes.
Package rename
The @yummacss/api package is renamed to @yummacss/core. This foundation better represents its role in the ecosystem.
pnpm remove @yummacss/apipnpm add @yummacss/coreTo improve consistency, two utility prefixes are renamed:
Box shadow
<div class="bs-*">...</div><div class="bsh-*">...</div>Isolation
<div class="i-*">...</div><div class="is-*">...</div>Pseudo-variants
This release adds support for pseudo-classes & pseudo-elements.
Pseudo-elements
Style ::before, ::after, ::selection, & ::placeholder directly.
The s::* variant customizes text selection styling:
Select this text to see custom selection colors!
<p class="s::bg-indigo-4 s::c-white c-black">Select this text to see custom selection colors!</p>The p::* variant styles placeholder text:
<input class="p::c-red-4 p::fs-i bw-1 bc-red-4 br-0 p-3 w-full" placeholder="I said, enter your email!" />Pseudo-classes
New fv:* for :focus-visible & fw:* for :focus-within variants.
<button class="fv:ow-2 fv:oc-indigo p-px bg-indigo c-white br-0"> Focus with keyboard</button>The fw:* variant targets containers when a child has focus:
<div class="fw:bc-indigo bw-2 bc-silver p-px br-0"> <input class="p-2 br-0" placeholder="Focus me" /></div>Touch device support
The pc:* media query variant targets devices with coarse pointer input.
<button class="p-px pc:p-6 bg-indigo c-white br-0"> Larger padding on touch devices</button>Cursor utilities
New cursor values are added for enhanced interaction feedback.
<div class="c-*">...</div>Touch action utilities
New ta-* utilities support all touch-action values.
<div class="ta-*">...</div>Transform updates
Rotation range
The t-r-* utility now ranges from 0 to 360 degrees.
<div class="t-r-*">...</div>Translate utilities
New t-tx-* & t-ty-* utilities simplify horizontal & vertical centering.
<div class="t-tx-* t-ty-*">...</div>Position auto support
The auto value is supported for b-*, i-*, ix-*, iy-*, l-*, r-*, & t-* utilities.
<div class="p-r"> <div class="p-auto l-auto r-auto d-14 bg-indigo"></div></div>Negative values
Negative values are supported via the -- syntax.
<div class="c-white d-f fs-sm jc-c"> <div class="ml--2 ai-c bg-indigo br-pill d-14 d-f jc-c bw-2 bc-indigo-2/50">A</div> <div class="ml--2 ai-c bg-indigo br-pill d-14 d-f jc-c bw-2 bc-indigo-2/50">B</div> <div class="ml--2 ai-c bg-indigo br-pill d-14 d-f jc-c bw-2 bc-indigo-2/50">C</div> <div class="ml--2 ai-c bg-indigo br-pill d-14 d-f jc-c bw-2 bc-indigo-2/50">D</div> <div class="ml--2 ai-c bg-indigo br-pill d-14 d-f jc-c bw-2 bc-indigo-2/50">E</div></div>Logical properties
Utility sets for mx-*, my-*, px-*, & py-* now use logical properties (margin-inline, margin-block, padding-inline, padding-block).
.mx-4 { margin-left: 1rem; margin-right: 1rem;}
.py-4 { padding-top: 1rem; padding-bottom: 1rem;}
.mx-4 { margin-inline: 1rem;}
.py-4 { padding-block: 1rem;}Upgrade
Get the latest version of Yumma CSS:
pnpm up yummacss@latest