Modifying the CSS of a iframe

I am creating a pivot table graph with my data from our app. The app is working well but the embedded tag created from kintone is an iframe and my understanding is that I can’t work with the CSS info of that tag. I would like to remove some of the columns and modify the fonts, etc. to make it more of a useful table for us, rather than simply raw data. Can someone give some input to this?

Hello Tyler,

If it is within the same domain, you should be able to manage the CSS tagged in the iframe.
Are you trying to manage the app that you had uploaded in the announcement section?
Could you remove the columns and modify the font directly from the pivot table?