 <tr><td><code>+unselectable</code></td><td>Turns the element unselectable. Used for buttons to prevent selection when clicking.</td></tr>
                            <tr><td><code>+arrow</code></td><td>Renders an arrow at the end of the element.</td></tr>
                            <tr><td><code>+block</code></td><td>Sets the margin for block elements.</td></tr>
                            <tr><td><code>+delete</code></td><td>A versatile delete cross inherited from Bulma: <a href="https://bulma.io/documen