Steps: How to Preview Block Styles
1. Click on the button above the block to edit.
2. Click on the "Style" tab.
3. Click on the "Preview All Styles" button.
4. Click and Drag the Scroll Bar to view all the styles.
5. Click the red "X" to close the Styles Preview window.
6. Proceed to Step 3 below, to select a Style to apply to the block.