at_theme-1.4.1/at_core/templates/block/block--system-branding-block.html.twig

{#
/**
 * @file
 * Theme override for a branding block.
 *
 * Each branding element variable (logo, name, slogan) is only available if
 * enabled in the block configuration.
 *
 * Available variables:
 * - site_logo: Logo for site as defined in Appearance or theme settings.
 * - site_name: Name for site as defined in Site information settings.
 * - site_slogan: Slogan for site as defined in Site information settings.
 */
#}
{%-
  set classes = [
    'block',
    'block-branding',
    'block-config-provider--' ~ configuration.provider|clean_class,
    'block-plugin-id--' ~ plugin_id_clean|clean_class,
    label ? 'has-title',
    site_logo ? 'has-logo',
    site_name ? 'has-name',
    site_slogan ? 'has-slogan',
  ]
-%}
<div{{ attributes.addClass(classes) }}>
  <div class="block__inner block-branding__inner">

    {{ title_prefix }}
    {%- if label -%}
      <h2{{ title_attributes.addClass('block__title') }}><span>{{- label -}}</span></h2>
    {%- endif -%}
    {{ title_suffix }}

    {%- block content -%}
      <div{{ content_attributes.addClass('block__content', 'block-branding__content', 'site-branding') }}>
        {%- if site_logo -%}
          <a href="{{ path('<front>') }}" title="{{ 'Home'|t }}" rel="home" class="site-branding__logo-link"><img src="{{ site_logo }}" alt="{{ 'Home'|t }}" class="site-branding__logo-img" /></a>
        {%- endif -%}
        {%- if site_name or site_slogan -%}
          <span class="site-branding__text">
            {%- if site_name -%}
              <strong class="site-branding__name"><a href="{{ path('<front>') }}" title="{{ 'Home'|t }}" rel="home" class="site-branding__name-link">{{ site_name }}</a></strong>
            {%- endif -%}
            {%- if site_slogan -%}
              <em class="site-branding__slogan">{{ site_slogan }}</em>
            {%- endif -%}
          </span>
        {%- endif -%}
      </div>
    {%- endblock -%}

  </div>
</div>