Html archive/import html gallery when click a link

Good morning!!
We have a issue, i tried to put an index.html file inside ojs file and copied and paste all de archives (carpetas) with style.css and img file to open this file when someone click in a insert link that is put it on in the main page. I tried with a new archive (carpeta) in ojs and writing the path in the index of the magazine, but we have not yet achieved. I only want to know where do i have tu put this archieve.