public static String tagClass(String tag, String clazz, String... content) {
		return openTagClass(tag, clazz, content) + closeTag(tag);
	}
public static String tagClass ( String tag , String clazz , String ... content ) { return openTagClass ( tag , clazz , content ) + closeTag ( tag ) ; }
Build a String containing a HTML opening tag with given CSS class, content and closing tag.
Content should contain no HTML, because it is prepared with {@link #htmlEncode(String)}.

@param tag String name of HTML tag
@param clazz CSS class of the tag
@param content content string
@return HTML tag element as string