This has been discussed before but the responses don’t make sense and don’t clarify the issue. Is there a simple way to adjust the size, separately, of multiple columns?
Second video on this page will help if you watch it through.
https://docs.realmacsoftware.com/elements-docs/getting-started/how-to/fix-common-design-issues
And it is really worthwhile bookmarking the youtube channel as you will find answers to questions you had not thought of and give you ideas for site improvements.