Thank you for the feedback. I greatly appreciate it as it lets me find ways to improve my work. I made this plugin primarily for myself, and without feedback I won’t know what other people need out of it.
I see what you need now. This is happening because the iframe is resized to 100% of its parent width, which is in this case the entire page for desktop. Something I didn’t account for.
Give me a few days(I got tomorrow off from work) and I should be able to add in a max-width setting for the plugin to overcome this issue.
Thank you again for mentioning this issue, and I am happy that you find the plugin helpful.