form input text input weid display under IE and FF ok

1,the input text under the IE7. it's weird. the text is on the top of the textbox.

http://run.xxmn.com/images/ie.jpg

2,the display under the开发者_如何学C FireFox .which is ok.

http://run.xxmn.com/images/firefox.jpg

i have written this style,but it still work.

  ......

  float:left;

 font-family:Arial, Helvetica, sans-serif;

 font-size:13px;

 height:25px;

 .....

Use line-height: 25px; or padding: 6px 0;