Custom CSSThere might be times where you want to style a block in a way that isn’t supported out of the box. You can use custom css styles as a workaround in these cases. To apply a CSS class to a block, you first need to give it a name and define the style properties you want to apply. Then, you can go to the canvas, select the block you want to change, and in the "Design" tab, under the "advanced" section, you can enter the name of the class you created earlier. It's important to note that using invalid custom CSS can cause your app to break. If your app fails to deploy, it's a good idea to double-check your CSS classes to ensure they are valid and error-free.