Less

1.变量

@

2.混入

3.嵌套

4.&

针对当前元素还是后代元素

5.function & operations

opearations支持 + - */ 四则运算，支持大括号

lighten(@color, 10%);     // return a color which is 10% *lighter* than @color
					darken(@color, 10%);      // return a color which is 10% *darker* than @color

					saturate(@color, 10%);    // return a color 10% *more* saturated than @color
					desaturate(@color, 10%);  // return a color 10% *less* saturated than @color

					fadein(@color, 10%);      // return a color 10% *less* transparent than @color
					fadeout(@color, 10%);     // return a color 10% *more* transparent than @color

					spin(@color, 10);         // return a color with a 10 degree larger in hue than @color
					spin(@color, -10);        // return a color with a 10 degree smaller hue than @color			

6.namespace >

取出mixing对象的一部分

7. scope

就近原则

8. comments

//
/**/

9. 客户端使用

引用 less.js文件http://lesscss.googlecode.com/files/less-1.1.3.min.js