摘要:
body{ text-align:center;}#mainbox{ display:block; width:500px; margin:50px auto; padding:15px; text-align:center; border... 阅读全文
摘要:
*{ margin:0px; padding:0px;}h1{ font:bold 20px verdana,sans-serif;}h1{ font:bold 14px verdana,sans-serif;}header,section,footer,aside,nav,article,figu... 阅读全文