Theme development

Hi to all, I've a lot of subtheme each one with a custom menù.
the primary links menù structure was made by ul class="menu nav navbar-nav" (bootstrap dropdown menu).
Any new menu has this structure:

I am creating a drupal 8 custom theme. I am not using any base theme. However, in the main menu, sub menu items which link to different pages of website, are not coming in browser. If I remove the link from sub menu to root and make it direct child of main menu , then the link gets displayed. How can I work with menus(also sub menus) and add classes to them.

I help manage a website which we run for free on a total non-commercial basis, promoting cycling in the north of England, soon moving into North Wales.

We finance things ourselves and don't want to take adverts, preferring to remain an independent portal for cycling, doing it all in our spare time for free.

However, I'd like us to start looking at a new responsive theme for the site, but our budget is zilch! Any help gratefully appreciated, and you'll get a warm feeling inside, knowing you help fellow altruistic people!

Robert

pedalnorth.com

I have a multilingual site with a custom theme and I need to start adding in the other languages. All the translation components seem to be in place, and I was able to set up the menu, but when I try to create a translation of a node, I get "access denied". I've gone through several postings to see if I can find something that solves my problem, but no luck.

Ok. I'm at a complete loss on this one.

I went to look at my content types page trying to solve a problem, and found that I can't see a proper page. I don't know how long ago this happened, as I haven't messed with Content types. In fact, I've done Nothing to backend admin page structure. I can't revert anything, wayyyyyy too much has been done.

can any one tell is their any module or something that can make the drupal theme responsive so that we can easily use it on mobile phone tablets etc.