以下代码在safari,chrome,firefox下测试通过

/*Round Corners*/
.roundedCorners {
	border: 1px solid #000; -moz-border-radius: 5px; -webkit-border-radius: 5px;
}
.roundedTopCorners {
	border: 1px solid #000;
	-moz-border-radius-topleft: 5px;	-webkit-border-top-left-radius: 5px;
	-moz-border-radius-topright: 5px;	-webkit-border-top-right-radius: 5px;
}
.roundedBottomCorners {
	border: 1px solid #000;
	-moz-border-radius-bottomleft: 5px;	-webkit-border-bottom-left-radius: 5px;
	-moz-border-radius-bottomright: 5px;-webkit-border-bottom-right-radius: 5px;
}