Agile and Test driven

1. Think before writing any code. Have a sketch in mediums other than code
2. If you're not test-driven, think of the test scenario before coding. Take care about the error handling.
• [JS] consider about the type passed in
3. Prioritize the test scenario, make the code pass the tests by order.

inline-block在IE

1. IE7下block元素不支持inline-block,但是inline元素默认支持inline-block
2. 在所有浏览器里，inline-block的对齐需要通过vertical-align进行控制。默认的对齐方式是baseline，看起来很奇怪。调节成vertical-align: top会好看很多。

testcase： http://jsbin.com/ujadis/3

http://work.arounds.org/issue/18/using-inline-block-ie7-and-ie6/

http://blog.mozilla.com/webdev/2009/02/20/cross-browser-inline-block/