Thread:Project:Support desk/Code help

Hi can I have some help to change the codes so that they will resize on different computer screen and resize on mobile like the wikipedia main page header because this code is for a user but it does not resize. And wikipedia English are currently having a redisgn main page and this person header looks nice buts does not resize or looks horrible on different screens sometime so please help here's the code.

Code:



And here the link to the site https://en.wikipedia.org/wiki/Wikipedia:2014_main_page_redesign_proposal/draft/Gabrielchihonglee