复选框单选框与文字对齐问题的研究与解决

1. http://zhidao.baidu.com/link?url=-oEHQETFpjnqDhgrrdBjNsnOIpu63R954SaJ8A5bRXdBxTpOGSiA3uHm4b7MnlC-Ji2BbWUVyROGKc7pils0uK

2. vertical-align:text-bottom基础

   css代码：vertical-align:text-bottom; margin-bottom:2px; margin-bottom:-2px\9;

3. vertical-align:text-top基础

   css代码：height:13px; vertical-align:text-top; margin-top:0;

4. vertical-align:bottom基础

   css代码：height:15px; vertical-align:bottom; margin-bottom:3px; margin-top:-1px;

5. vertical-align:middle基础

   css代码：vertical-align:middle; margin-top:-2px; margin-bottom:1px;