CSS3 border-radius:

浏览器参照基准:Firefox3.6 and Later, Chrome5 and Later, Safari5 and Later, Opera10.53 and Later, IE9.0 and Later

全圆角:

#border-radius{
	border-radius:10px;
}

左上圆角:

#border-top-left-radius{
	border-top-left-radius:10px;
}

右上圆角:

#border-top-right-radius{
	border-top-right-radius:10px;
}

右下圆角:

#border-bottom-right-radius{
	border-bottom-right-radius:10px;
}

左下圆角:

#border-bottom-left-radius{
	border-bottom-left-radius:10px;
}

不规则圆角:

#border-irregular-radius{
	border-top-left-radius:20px 50px;
}

圆角的一个小变通(画圆):

#border-circle-radius{
	width:200px;
	height:200px;
	border-radius:100px;
}
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