starting point for drupal paragraph block, just the html stuff and a twig variable for block_name.

start_paragraph_drupal_block.html.twig

{% set block_name = "example_class" %}
{% set classes = [
  'paragraph',
  'paragraph--type--' ~ paragraph.bundle|clean_class,
  view_mode ? 'paragraph--view-mode--' ~ view_mode|clean_class,
  not paragraph.isPublished() ? 'paragraph--unpublished',
  block_name
] %}
  {% block paragraph %}
    {% block content %}
      <section class="{{ attributes.addClass(classes) }}">
        <div class="container">
          {{ content }}
          {{ dump(content) }}
        </div>
      </section>
    {% endblock %}
  {% endblock paragraph %}

this approach will work with paragraph fields add directly on the page. Not when referencing microcontent or content reference entity.

if your block does use microcontent.. then reference you microcontent field from {{ content.your_micro_content }}

If you have a blank page.. and your creating blocks. this is a good starting point.