bootstrap\Alert $closeButton

The options for rendering the close button tag. The close button is displayed in the header of the modal window. Clicking on the button will hide the modal window. If this is false, no close button will be rendered.

The following special options are supported:

• tag: string, the tag name of the button. Defaults to 'button'.
• label: string, the label of the button. Defaults to '×'.

The rest of the options will be rendered as the HTML attributes of the button tag. Please refer to the Alert documentation for the supported HTML attributes.