Post Margin CSS Code

Hello

**the corresponding url (You should see it on your mobile screen.)
https://kimstipguide.com/the-best-college-student-laptop/

I used the column function when writing the article.

However
on the mobile screen
Margins are not aligned.

Please tell me the CSS code so that the correct margin is displayed on the mobile screen.

Here is the address of the question description.

https://kimstipguide.com/wp-content/uploads/2021/12/21-12-03.jpg

thank you!

I’m sorry.
Please defer this work to a later date.
You don’t have to answer.
thank you.