Custom CSS on embeded iframe

URL: mango-silver-m9c6.squarespace.com
Password: 1234

Hi there, I want to do some style changes to a google sheet I've embedded. I've made a test site to illustrate the problem. I'm unable to target any ids or classes through the CSS editor. As far as I understand it might be because iframe style is locked in some way. It should be possible to convert the iframe content to divs with a script and then customize the CSS, but I don't know how to do that.
 

I've attached a picture of what the table looks like now and what I want it to look like.
If anyone could help me out I'd greatly appreciate it.
A bonus would be having the ability to change the color of the border and scroll section as well!

49 minutes ago, Sahil007 said:

URL: mango-silver-m9c6.squarespace.com
Password: 1234

Hi there, I want to do some style changes to a google sheet I've embedded. I've made a test site to illustrate the problem. I'm unable to target any ids or classes through the CSS editor. As far as I understand it might be because iframe style is locked in some way. It should be possible to convert the iframe content to divs with a script and then customize the CSS, but I don't know how to do that.
 

I've attached a picture of what the table looks like now and what I want it to look like.
If anyone could help me out I'd greatly appreciate it.
A bonus would be having the ability to change the color of the border and scroll section as well!

You can add to the iframe code with 

  <iframe

    src="xxx&widget=false&headers=false&chrome=false">
  </iframe>

chrome=false (hide the title above) and widget=false (hide the tabs below):

40 minutes ago, Beyondspace said:

You can add to the iframe code with 

  <iframe

    src="xxx&widget=false&headers=false&chrome=false">
  </iframe>

chrome=false (hide the title above) and widget=false (hide the tabs below):

I didn't quite understand where to put it within the code. I end up getting errors. Would you mind showing me? This is the code I'm using:
 

<iframe 
src="https://docs.google.com/spreadsheets/d/e/2PACX-1vSn1lrPGQwk4fOesggRe857RvFh_eCSaZf-GUaEQv0xKki_XJrOnsaOZ_fP0csLndMzHSUrfzhtGxVd/pubhtml?gid=0&amp;single=true&amp;widget=true&amp;headers=false"width="100%"height="400px";>
</iframe>

I'm able to insert it and have the header disappear, but the white section under the table remains. As well as the background behind the scroll section.

8 minutes ago, Sahil007 said:

I didn't quite understand where to put it within the code. I end up getting errors. Would you mind showing me? This is the code I'm using:
 

<iframe 
src="https://docs.google.com/spreadsheets/d/e/2PACX-1vSn1lrPGQwk4fOesggRe857RvFh_eCSaZf-GUaEQv0xKki_XJrOnsaOZ_fP0csLndMzHSUrfzhtGxVd/pubhtml?gid=0&amp;single=true&amp;widget=true&amp;headers=false"width="100%"height="400px";>
</iframe>

I'm able to insert it and have the header disappear, but the white section under the table remains. As well as the background behind the scroll section.

@Beyondspace

I realize now that the white segment at the bottom is just leftovers from the white within the excel file. My bad. But do you have a solution to make the scroll area transparent? or perhaps another color such as black?