selectors cover page
The specifications below belong to the series 'selectors'
Selectors Level 4
Working Draft- Tags
- CSS
- Deliverers
- Cascading Style Sheets (CSS) Working Group
Selectors are patterns that match against elements in a tree. They are a core component of CSS (Cascading Style Sheets), which uses Selectors to bind style properties to elements in a document.
Selectors Level 3
Recommendation- Tags
- CSS
- Deliverers
- Cascading Style Sheets (CSS) Working Group
Selectors are patterns that match against elements in a tree. Selectors have been optimized for use with HTML and XML, and are designed to be usable in performance-critical code.
CSS (Cascading Style Sheets) is a language for describing the rendering of HTML and XML documents on screen, on paper, in speech, etc. CSS uses Selectors for binding style properties to elements in the document. This document describes extensions to the selectors defined in CSS level 2. These extended selectors will be used by CSS level 3.
Selectors define the following function:
expression ∗ element → boolean
That is, given an element and a selector, this specification defines whether that element matches the selector.
These expressions can also be used, for instance, to select a set of elements, or a single element from a set of elements, by evaluating the expression across all the elements in a subtree. STTS (Simple Tree Transformation Sheets), a language for transforming XML trees, uses this mechanism. [STTS]