.corner-all { -moz-border-radius: 4px; -webkit-border-radius: 4px; border-radius: 4px; } But to make it working in IE, i have just included the 'curvycorners.js' in the view file <script type="text/javascript" src="curvycorners.js"> This also works <script type="text/javascript" src="curvycorners.src.js">