hp theme change

Hi!I need your help just to make a little change in my hp. my website is https://www.pdozzano.it .I would like that every section have the title and that graphic line which separe every section. For example in the sidebar for the “social widget” you have the title “segui” and the graphic line near. I would like to have the possibility of a title and that graphic solution also for the section “articoli” and “in primo piano” in the main body and for every widget (and relative plug in) I insert in the sidebar. What do i have to modify?Could you help me? Thank You!!