hacks-guide-minimal-mistakes-theme/_includes/search/search_form.html

<div class="search-content__inner-wrap">
  {%- assign search_provider = site.search_provider | default: "lunr" -%}
  {%- case search_provider -%}
  {%- when "lunr" -%}
  <form class="search-content__form" onkeydown="return event.key != 'Enter';">
    <label class="sr-only" for="search">
      {{ site.data.ui-text[site.locale].search_label_text | default: 'Enter your search term...' }}
    </label>
    <input type="search" id="search" class="search-input" tabindex="-1" placeholder="{{ site.data.ui-text[site.locale].search_placeholder_text | default: 'Enter your search term...' }}" />
  </form>
  <div id="results" class="results"></div>
  {%- when "google" -%}
  <form onsubmit="return googleCustomSearchExecute();" id="cse-search-box-form-id">
    <label class="sr-only" for="cse-search-input-box-id">
      {{ site.data.ui-text[site.locale].search_label_text | default: 'Enter your search term...' }}
    </label>
    <input type="search" id="cse-search-input-box-id" class="search-input" tabindex="-1" placeholder="{{ site.data.ui-text[site.locale].search_placeholder_text | default: 'Enter your search term...' }}" />
  </form>
  <div id="results" class="results">
    <gcse:searchresults-only></gcse:searchresults-only>
  </div>
  {%- when "algolia" -%}
  <div class="search-searchbar"></div>
  <div class="search-hits"></div>
  {%- endcase -%}
</div>