# Reference table

<div class="Vlt-table Vlt-table--data">
|Class |	Behaviour|
|---|---|
|`.Vlt-flash-trigger`	| If you're using Volta.js, add to the element to trigger your flash on click |
|`.Vlt-flash`	| Added to `.Vlt-callout`, it adds positioning and box shadow |
|`.Vlt-flash_visible` |	Added via Javascript, it makes the flash message appear |
|`.Vlt-flash--bottom` |	Makes the flash message appear from the bottom)|
|`.Vlt-flash--small`	| Makes the flash message be 50% width on large screens, back to full width on smaller devices |
|`.Vlt-btn--secondary` |	Adds the styles needed for secondary buttons (blue)|
|`data-flash`| Put on the trigger button and insert the `id` of the flash that needs to be triggered |
|`id`| Declare the flash message id so that `data-flash` can find it |
</div>

Additionally, you can refer to all the **Default Callout** classes for styling