H5P Mark-the-Word Reuse - Wordpress

We created one H5P content of mark the word component as per our style in our wordpress (WordPress 6.4.2). The issue is while changing the screen size the content inside the h5p iframe is getting overflow and the overflowing part is hidder under the div section. How can I resolve this issue? For further reference of you I will here attach the website url with the mark-the-word component : https://unterrichtseinheiten.boeckler.de/h5p-mark-the-words-bug/ 

Below I am attaching the bug part

The bug free part should be like below ( In above image the last paragarph not getting display fully in some cases, for reproduce that error you can make the screen in inspect mode and do refresh)