Theme development

Hello all,

I tried in mytheme.theme

function mytheme_preprocess_block(&$variables) {
  if ($variables['elements']['#id'] == 'myblock') {
    $variables['#attached']['library'][] = 'js/readmore.min.js';
  }
}

I get:
User warning: The following theme is missing from the file system: js in drupal_get_filename() ...core/includes/bootstrap.inc

readmore.min.js is present in themes/mytheme/js/

I have put main navigation to two different areas. In area A the blocks shows only level 1 menu items and on area B it shows from level 2 to N. Now I would like to use different twig template for these two blocks but it seems that they both just use the same template. Is there any way to make two separate templates or even identify these two blocks so that I could make some if-else to the template file?

Hi All
How Can I responsive Below Site Theme?
[Possibly spam link removed]

Hi all! May sound like a silly Question, but I can't seem to figure out how to change the color of links just at the bottom of this page to a yellow:

http://www.saintbarnabas.us/

As in:

Latest News (YELLOW)

Lenten Program and Dinner
(YELLOW)--ONLY THE TITLE, FOR EXAMPLE Lenten Program and Dinner

First time using default value in node text fields (not in a form) and first time i need to assign a custom class if text fields is not filled.
I searched around the web but i have not found anything about this issue.

It may made, in alternative way, in a view?

Could you help me ?

How can I show only "read more" link just in node teaser, and remove or unset other links like "add new comments" or "2 Comments" at the end of a node teaser?