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              # My CSS Wishlist

## Selectors

- `:previous` to select the previous element sibling
- `:parent` to select the parent element
- `:closest(selector)` to select the closest ancestor matching a selector
- `:ancestor(selector)` to select all ancestors matching a selector
- `:first` to select the first element matching a selector
- `[attribute < number]` select if attribute is less than a number
- `[attribute > number]` select if attribute is greater than a number
- `[attribute <= number]` select if attribute is less or equal to a number
- `[attribute >= number]` select is attribute is greater or equal to a number
- `:attribute(partial-name-*)` select by partial attribute match
- `:tag(partial-name-*)` select by partial tag name match

## At-Rules

- `@element selector (condition) { stylesheet }`

## Units

- `ew` 1% of element's width
- `eh` 1% of element's height
- `emin` equal to `min(1ew, 1eh)`
- `emax` equal to `max(1ew, 1eh)`

## Values

- `auto-expand` as a value for `width` and `height` properties
- `offsetWidth`, `offsetHeight`, `offsetLeft`, `offsetTop`
- `scrollWidth`, `scrollHeight`, `scrollTop`, `scrollLeft`
- `innerHTML.length`, `value.length`
- cursor `X` position, cursor `Y` position

## Properties

- `aspect-ratio` to set height based on the element's width and a ratio

## Functions

- `clamp(min, mid, max)` to limit scalable values with a minimum and maximum
- `round(number)` gives the nearest integer to a given number
- `floor(number)` gives the largest integer equal or less than a given number
            
          
!
            
              @element code {
  $this {
    background: hsl(eval("([].indexOf.call(document.querySelectorAll('code'), $it) * 5) + 150"), 100%, 90%);
  }
}
            
          
!
999px
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