silverstripe-webpack/app/templates/Layout/PageController_search.ss

<% with $SearchResults %>
<div id="PageContainer" class="page{$CSSClass} pageSearch action{$Action}">
    <div class="element">
        <div class="element page-header-element d-block no-elements">
            <div class="element-container {$Top.DefaultContainer}">
                <h1 class="page-header">
                    $Title
                </h1>
            </div>
        </div>
    </div>

    <div class="page-content page-content-main page-content-extra">
        <div class="elemental-area">
            <div class="element">
                <div class="element-container {$Top.DefaultContainer}">
                    <% if $Results %>
                    <div id="SearchAccordion{$ID}">
                        <% loop $Results %>
                            <div class="card">
                                <div class="card-header" id="Heading{$ID}{$Up.ID}">
                                    <h3
                                            class="mb-0 a"
                                            data-toggle="collapse"
                                            data-target="#Collapse{$ID}{$Up.ID}"
                                            aria-expanded="false"
                                            aria-controls="Collapse{$ID}{$Up.ID}"
                                    >
                                        $Title
                                        <i class="fas fa-plus accordion-icon pull-right"></i>
                                    </h3>
                                </div>

                                <div
                                        id="Collapse{$ID}{$Up.ID}"
                                        class="collapse"
                                        aria-labelledby="Heading{$ID}{$Up.ID}"
                                        data-parent="#SearchAccordion{$Up.ID}"
                                >
                                    <div class="card-body">
                                        <p>$Summary(100)</p>
                                        <a href="{$Link}">Learn More</a>
                                    </div>
                                </div>
                            </div>
                        <% end_loop %>
                    </div>
                    <% else %>
                        <h3>Nothing was found.</h3>
                    <% end_if %>
                </div>
            </div>
        </div>
    </div>
</div>
<% end_with %>