Issue with Google Doc sizing and visibility of other docs on same page

Site URL: https://maqma.info/results

Hello, I am running into an issue.

I have three Google Sheets I want to publish. When I published the first one, it was not the correct size so we modified the iframe code to this:

<iframe src="https://docs.google.com/spreadsheets/d/e/2PACX-1vT14aU-0LxPMx3H-CZqG7GdG0818pT8BpxwPaAk94FCFBwp5YgYJr_vKdiqMB5oildXH71ji29UtUdc/pubhtml?widget=true&amp;headers=false" 

height="750x" width="1250px"

</iframe>

When I tried to publish another code block beneath it, it would appear in Page Edit mode, but not when published. Also, Top Section  above Google Doc section can not be deleted. What did I do wrong here?

Hi. You want to remove this title? "2021 MAQMA Points & Finish Order"