Like the notation we used to extract using cssselect, CSS selectors are patterns used for selecting HTML elements. Here are some examples of common selectors you should know:
Select any tag: *
Select by tag <a>: a
Select by class of "link": .link
Select by tag <a> with class "link": a.link
Select by tag <a> with ID "home": a#home
Select by child <span> of tag <a>: a > span
Select by descendant <span> of tag <a>: a span
Select by tag <a> with attribute title of "Home": a[title=Home]
The cssselect library implements most CSS3 selectors, and details on unsupported features (primarily browser interactions) are available at https://cssselect.readthedocs.io/en/latest/#supported-selectors.
The CSS3 specification was produced by the W3C and is available for viewing at http://www.w3.org/TR/2011...
