这是html5的bug吗？
td中的图片下有5px空隙，文字没有。
<!DOCTYPE HTML> <html lang="en-US"> <head> <meta charset="UTF-8"> <title></title> </head> <body> <style type="text/css"> *{margin:0;padding:0;} </style> <table cellpadding="0" cellspacing="0"> <tr> <td><div style="background:#ccc;">下面有5px空隙</div></td> </tr> <tr> <td><div style="background:#ccc;">下面有5px空隙</div></td> </tr> <tr> <td><div style="background:#ccc;">下面有5px空隙</div></td> </tr> <tr> <td><div style="background:#ccc;">下面有5px空隙</div></td> </tr> </table> <table width="980" border="0" align="center" cellpadding="0" cellspacing="0" id="Table_01"> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_01.jpg" width="980" height="201" alt=""></td> </tr> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_02.jpg" alt="" width="980" height="176" border="0" usemap="#Map"></td> </tr> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_03.jpg" width="980" height="166" alt=""></td> </tr> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_04.jpg" width="980" height="457" alt=""></td> </tr> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_05.jpg" width="980" height="448" alt=""></td> </tr> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_06.jpg" width="980" height="231" alt=""></td> </tr> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_07.jpg" width="980" height="186" alt=""></td> </tr> <tr> <td><img src="http://hd.yidianda.com/zt/201210/25/images/4_08.jpg" width="980" height="224" alt=""></td> </tr> </table> </body> </html>