Define firm left margin for content in a section

2 hours ago, davidbrewster said:

Site URL: https://susie-gregory-21.squarespace.com

I'm trying to force the text in a particular section to stay left (with a margin of 50px) as the screen size changes. That is, in the image attached, I want that left-hand orange area to stay at 50px rather than adjusting to centre the text block on the page. I can do this with CSS by applying a margin-left tag to the content wrapper, however the content wrapper's ID is a #yui, not a #block-yui, so it changes all the time.

Any ideas on how I can target the content wrapper in a way that will stay fixed? Or other ways to achieve the same end.  (What we are aiming to do is stop the text from 'drifting' onto the rocks on large screens.)

(Password to see the site is 'alice')

Try adding to Home > Design > Custom Css

section[data-section-id="61a5b35dcb3aea5591e942dc"] .content-wrapper {
  margin: 0 50px !important;
}