This is how to show a banner. You have a lot of options to adjust your banner in general, for example: banner type, banner image, image size, content position and also alignment of your image.
Besides, you have a great deal of options to add more banner content: title, description, discount information, moreover, you can choose whether you want to display button, add animation or not.
There are absulutely options for styling text and things inside the banner, feel free to discover them.