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background:blue;
/* Firefox */
background:red \9; /* IE8£¨Ö»ÓÐIEϵÁÐä¯ÀÀÆ÷ÈÏʶ\9£©
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_background:orange; /* IE6
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/* Opera */
html:first-child #opera
{
display: block;
}
/* IE 7 */
html > body #ie7
{
*display: block;
}
/* IE 6 */
body #ie6
{
_display: block;
}
/* Firefox 1 - 2 */
body:empty #firefox12
{
display: block;
}
/* Firefox */
@-moz-document url-prefix()
{
#firefox { display: block; }
}
/* Safari */
@media screen and (-webkit-min-device-pixel-ratio:0)
{
#safari { display: block; }
}
/* Opera */
@media all and (-webkit-min-device-pixel-ratio:10000), not all and (-webkit-min-device-pixel-ratio:0)
{
head~body #opera { display: block; }
}
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