Adding a Banner to your Table
1. Starting with your blank table, you can prepare the table for a banner image by merging all the cells you want to join for the banner.
2. Click in the leftmost cell you want to start merging, and then right click to open the table menu. (You can also click on the edit table menu in the toolbar.)
3. Go to Cell> Merge Right
4. After you click, you will find that the top of your table spans over the cells below.
5. Here you can see what your email will look like when a banner image is added to the top.