Hi
I'm guessing that you want both the tabs and their panes to just to appear vertically rather than just the tabs and I'm not sure there is an easy solution to that. However if your are mainly concerned about just the tabs appearing vertically and retaining the navigation then I think there are two option:
1. use the accordion instead
2. try the following:
in a styles optional property at LO level add the following:
/* Smartphones (portrait and landscape)
*/
@media only screen
and (min-device-width : 320px)
and (max-device-width : 480px) {
.nav-tabs > li {
clear: both;
}
}
This is in a media query so should only affect devices that match that query and should look like the attached screenshot.
HTH
Ron