Why different sizes of html table cells?

Question

css

There is a table. Yatseyki in it with the class "ths".
If you enable the mode for viewing the site in the mobile version (toggle device toolbar) in the browser in the developer tools, then the cells will not match those specified in CSS. Moreover, they will be different in width. What to do?
I apologize for the pictures from the phone's camera, the network card burned out on the computer, so I get out with the phone :)

Answer 1

You use tables for other purposes, of course, but if you want, that is, table-layout: fixed