Make a website mobile friendly with CSS media query

Make our website mobile friendly with CSS media query we do not give access on the server, so you cannot modify our CSS files, you will have to use the browser F12 to make the CSS, then send us the new CSS by email. 8 Pages to work on : shared Header/Footers [login to view URL] [login to view URL]@/Rembrandt-Van-Rijn [login to view URL]@@/8YDJKC-Night-Watch [login to view URL] [login to view URL][Champ20_EN]+contains+%22Books%22 [login to view URL] [login to view URL] [login to view URL] Step 1 : MOBILE We would like to make our website mobile friendly - to pass goggle test mobile You create one new CSS file with media query and we will install it onto the server (we cannot give you login to edit our css files) There is 8 pages to optimize, we would like to have one single media query for screen < 600px for each of this pages. Total 8 CSS files plus one CSS file for the header/footer If needed we will add new CLASS in the HTML pages to make easier to build the CSS mobile, just ask if you need more CLASS in the html source pages All the Pages must pass the google mobile friendly test please check attached images files for details Step 2 : DESKTOP FIXS for desktop with screen larger than 1000 px tune the website CSS to make sure there is no horizontal scrollbar in any of the 8 pages You list for us the change to apply in our CSS file, and we will apply the changes our self (we cannot give you login to edit our css files)