link = new Link("Small", new ExternalResource("https://vaadin.com"));
link.addStyleName("small");
row.addComponent(link);
link = new Link("Large", new ExternalResource("https://vaadin.com"));
link.addStyleName("large");
row.addComponent(link);
link = new Link(null, new ExternalResource("https://vaadin.com"));
link.setIcon(testIcon.get());
link.addStyleName("large");