Select a template type to begin designing your content. If you set up and save your own templates, they'll live under My Templates. If you're providing your own code, choose the Code Your Own or Import options. We're going to use the Drag & Drop Editor.

Once you choose your template, you'll remain in the Design step of the campaign-builder process. You'll add content and images in the content editor in this step. Click show style editor to set your design and style options.