* Dismissible flyouts also require use of the `<a>` tag, not the `<button>` tag, and must include the `role="button"` and `tabindex` attributes.
* The `data-theme` attribute can be set to the following values: `theme-default`, `theme-alt`, `theme-light` or `theme-dark`. It is applied to the `<a>` tag.
* The `data-placement` attribute can be set to the following values: `top`, `right`, `bottom` or `left` and governs the placement of the flyout with respect to the entry point. It is applied to the `<a>` tag. The default value is `right`.