各大浏览器中的HTML标签预设的margin，padding值

HTML标签margin，padding的预设值
预设值	标签	firefox	IE6	IE7	IE8以上	Safari	Chrome	Opera
margin	body	8px	15px 10px	16px 11px	16px 8px
	h1	21px 0 22px	19px 0		20px 0	21px 0	21px 0 22px	21px 0
	h2	20px 0	19px 0		20px 0	19px 0	20px 0	19px 0
	h3	19px 0 18px	19px 0		19px 0 18px	18px 0	19px 0 18px	18px 0
	h4	22px 0 21px	19px 0		22px 0 21px	21px 0	22px 0 21px	16px 0
	h5	22px 0	19px 0		22px 0
	h6	25px 0	19px 0		25px 0	24px 0	28px 0	24px 0
	dl	16px 0	19px 0		16px 0
	dd	0 0 40px
	ul	16px 0	19px 0 19px 40px		16px 0
	ol	16px 0	19px 0 19px 40px		16px 0
	p	16px 0	19px 0		16px 0
	thead/tbody/tfoot	2px
	form	0	19px 0		0
	textarea	2px
	select	0				2px		0
padding	ul	0 0 40px	0		0 0 40px
	ol	0 0 40px	0		0 0 40px
	option	0 0 3px	0		0 0 3px
	th/td	1px		0 1px	0 1px 1px	1px

将此表应用到浏览器样式的重置，可以写为

body, h1, h2, h3, h4, h5, h6, dl, dd, ul, ol, p, thead, tbody, tfoot, form, textarea, select
{
margin: 0;
}
ul, ol, option, th, td
{
padding: 0;
}