Theme development

I've got a field collection for slides in a paragraph. Each field collection slide has a background image field and a headline field. The editor can add as many slides as they want. I'm trying to theme this output. So, I've been assuming I should loop through the field collection items and spit each out, but it's completely baffling me. I'm not the best PHP'er, but I get by.

In 'paragraphs-item--content-slider.tpl.php' this prints the first 2 just fine, as you would expect:

I have a site with the Bootstrap 3.3.7 theme and I want the farm navigation menu to click when I click outside.

I managed to make it work with the following code :

    (function ($) {
      'use strict';
    
      $(document).click(function (event) {
           $('.navbar-collapse-first').collapse('hide');
      });
    
    }(jQuery));

My problem :

When I click next to a link in the navigation menu, it closes. I want it to close only when I click OUTSIDE of the menu.

Hi, this may be a naive question as I'm a real beginner to web development. I built a blog website using Drupal 8, and downloaded and installed a theme. I would like to modify the theme, as I want to make the site title smaller and the navigation menu bigger. I first used the browser's inspect element tool to modify the CSS, which did exactly what I wanted. However, when I attempted to modify the style.css file and upload the modified version to the server, my changes did not take effect.

I have ten custom List (integer) Fields, each has 5 values to choose from on the list. Within my Twig configuration I've been programmatically using {% if node.field_options.value == 'X' %} to display some CSS and an Image based on value returned.

Performance wise, is there anything wrong with doing this or will it slow down rendering of the page?

I have a strange problem with a .theme file on a Drupal 8 (8.5.4) site

Drupal are not registrating any changes that I make to the file.
Right now the file is empty but all the old functions still active on the site.

Drupal only registrate if I rename or delete the .theme file.

I have cleared the cache with Drush cr and from the GUI, but stil no effect.

I have delete the whole theme folder at reinstalled it, but no effect.

The site is running on a nginx/1.10.3 server and using Redis Cache.

I have no knowlegs of Redis.

Hello,

I'm using a bootstrap sub-theme to make a webpage.

Which is the right way to declare my bootstrap grid classes(col-xs-* ....)?

Inside the page.tpl.php or to the template.php with the function subtheme_name_preprocess_page().

If the right way is inside the template.php how I can do it?

Thanks!