Canvas Embed Sizing Problem

I have encountered an issue while embedding my Storyline module into Canvas for our school. When I upload the ZIP file, Canvas provides three options: embed as a graded assignment, embed as an ungraded assignment, or create a page based on the content. However, in any of these options, I am unable to access or modify the HTML to adjust the display settings—specifically the frame size.

For this training, readability is essential. In its current embedded format, the module appears too small, and in some cases the text is nearly impossible to read. Since the design relies heavily on visual clarity, this significantly affects usability and learning effectiveness.

I’m concerned that without a way to properly adjust the display dimensions, the quality and impact of the entire project may be compromised. Could you please advise on the best solution to ensure the module displays at an appropriate size within Canvas?

Thank you for your guidance!