css question for timeline

I still have 2 customizations to do which should be possible in css:
1. do not display the search field but only in the timeline view because this field is useful on other pages, particularly for frontend management (a simple display none is enough but I can't find where to put it.. .)
2. I would like the price to appear in a rounded rectangle and in another color, what would be the correct code?

Hi Jean

This is not something I could guide you directly here. You can submit a support ticket sending us super user account of your site and link to the page. I will ask my template developer to look at it and help with this modification

Tuan