页面信息
标题（Title） 一般不超过80个字符
MooTools
关键词（KeyWords）一般不超过100个字符
描述（Description）一般不超过200个字符
MooTools is a compact, modular, Object-Oriented JavaScript framework designed for the intermediate to advanced JavaScript developer. It allows you to write powerful, flexible, and cross-browser code with its elegant, well documented, and coherent API.