[ 源代码： ruby-crass ]
软件包：ruby-crass（1.0.2-2）
CSS parser based on the CSS Syntax Level 3 draft
Crass is a pure Ruby CSS parser based on the CSS Syntax Level 3 draft specification. Tokenizes and parses CSS according to the rules defined in the 2013 draft of the CSS Syntax Level 3 specification.Extremely tolerant of broken or invalid CSS. If a browser can handle it, Crass should be able to handle it too.