Child theme: style.css version string different for some elements

Hi,

I am not very familiar with versions of style sheets, i am guessing it is auto-generated, cached and released when browser sees a new version or when cache is cleared (which I did: browser and CDN). My issue is that I am trying to style the search input, my CSS is ignored, when, as the same time and in the same file I also styled another element (footer lists hyperlinks) and it is updated. I added the code in style.css of my child theme and transfered via SFTP client.

Chrome DevTools shows my that these 2 elements have different version for the style.css
links: style.css?ver=1553708683:370
Input: style.css?ver=1553708683:263

All the code is in only 1 file which is style.css

I am stuck here on what to do next.

Thanks for help!