I saw this page How do I load an HTML page in a <div> using JavaScript? But I want to link to 3 different div containers from 3 menus that are in a separate div container. (Im changing from frames to flexbox) my set up has a master menu on the right side that links to three menu div. (menu-A menu-B menu-C) these send files to the corresponding div for display of the file. (so div menu-A sends the file to div view-A; menu-B to view-B and same for menu-C) This is an offline note taking "app" (pure html5 and css3 only) I wrote to help students be organized, get files from me/share files with others and keep notes. I choose html as it runs in all OS and can support the many languages my students use (I teach overseas)
Is this possible with flexbox? - I set up a flexbox master file that looks like my frames set up, but cant figure out how to send files from the master menu to the 3 menu divs and then to the 3 viewer div. Easy in frames, but how to in flexbox? All answers I find are to send to one div on the same page. My master-menu has about 80 links each going to either menu-A, Menu-B or menu-C. I just began to learn javascript so I know I have much to learn!