Drupal 7.x

I have content type article which consist of term reference field with options like life, house etc. User create content after selecting content these. I want to create page with drag and drop functionality for fields. Any suggestions for this will be helpful.

How to check bad behavior module works ?  Way to test bad behavior

I am testing migrating my site to a different web host. I successfully migrated and the site fully loads, however, I'm unable to go to the admin/config/media/file-system page. Each time I try I see a 302 redirect logged and I'm sent back to the home page.

Hello,

I wonder if there is a way to get different layouts in function ot the OS the user has ?
(something like the themekey module, but for linked pages)

I am using panels with different lines; on each of them there are 4 views;
it is ok on PCs, but not on iPhone where they are stacked.

So, I would like having two different layouts for the same page, one for computers, one for smartphones.

I am re-theming a site with Bootstrap and the masonry and masonry-views modules.  I have no clue HOW Drupal is deciding to insert a "style" attribute into the "masonry-item" DIV. The "style" that is being inserted horizontally collapses all of the blocks that masony-views and ruins any ability to restyle the element with CSS, since "style" overrides CSS.  I don't see anywhere in views or in masonry-views where the style attribute is being set.  MORE DEEPLY BURIED DRUPAL BS?

I have a taxonomy similar to the following: Country > State > City

When I navigate to a page for Country, I want it only to show States. Then, if I were to navigate to States, I want it only to show city. 

Currently, the only thing I could have it do is show both States and Cities regardless of the level I'm working with. 

Hopefully that makes sense! Any help would be greatly appreciated!