Custom Component Variants
Many Vaadin components have built-in theme variants that provide different styles for the component. Theme variants are similar to CSS class names, but are automatically inherited by sub-components within the component to which they are applied.
You can define your own component theme variants using component-specific style sheets in a custom theme.
:host([theme~="rounded"]) {
border-radius: 1em;
}
You can then apply the theme variant similarly to the built-in variants:
Button btn = new Button("Rounded");
btn.getThemeList().add("rounded");
These are inherited to sub-components in a similar way to the built-in variants.
See Styling Components to learn how to target the internal parts of Vaadin components.
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