css `&` nesting selector support

[juner]

Name of the lexer css & nesting selector support

Code sample

body {
   &:has(span) {
      background-color: red;
   }
}

https://rouge.jneen.net/v4.5.1/css/Ym9keSB7CiAgICY6aGFzKHNwYW4pIHsKICAgICAgYmFja2dyb3VuZC1jb2xvcjogcmVkOwogICB9Cn0K

Additional context

& nesting selector - CSS: Cascading Style Sheets | MDN https://developer.mozilla.org/en-US/docs/Web/CSS/Nesting_selector

2.1. Syntax - CSS Nesting Module https://www.w3.org/TR/css-nesting-1/#syntax

CSS Nesting | Can I use... Support tables for HTML5, CSS3, etc https://caniuse.com/css-nesting