In addition to the default Markdown you can write, GitBook has a number of out-of-the-box interactive blocks you can use. You can find interactive blocks by pressing /
to see which ones you can use.
Each tab is like a mini page — it can contain multiple other blocks, of any type. So you can add code blocks, images, integration blocks and more to individual tabs in the same tab block.
GitBook supports thousands of embedded websites out of the box, simply by pasting their links. Feel free to check out which ones are supported natively here.