<main>
  <span class="not-print">
    <%= render "admin/shared/budget_investment_search", url: management_budget_investments_path(@budget) %>
  </span>

  <div class="wrap row">
    <div id="budget-investments" class="budget-investments-list small-12 medium-9 column">

      <div class="small-12 search-results">
        <%= tag.h2 t("management.budget_investments.filters.unfeasible") if params[:unfeasible].present? %>
        <%= tag.h2 t("management.budget_investments.filters.heading", heading: @heading.name) if @heading.present? %>
        <% if params[:search].present? %>
          <h2>
            <%= page_entries_info @investments %>
            <%= t("management.budget_investments.search_results", count: @investments.size, search_term: params[:search]) %>
          </h2>
        <% end %>
      </div>

      <% @investments.each do |investment| %>
        <%= render "/budgets/investments/investment",
          investment: investment,
          investment_ids: @investment_ids,
          ballot: @ballot %>
      <% end %>

      <%= paginate @investments %>
    </div>
  </div>
</main>

<main>
  <span class="not-print">
    <%= render "admin/shared/budget_investment_search", url: management_budget_investments_path(@budget) %>
  </span>

  <div class="wrap row">
    <div id="budget-investments" class="budget-investments-list small-12 column">

      <div class="small-12 search-results">
        <%= tag.h2 t("management.budget_investments.filters.unfeasible") if params[:unfeasible].present? %>
        <%= tag.h2 t("management.budget_investments.filters.heading", heading: @heading.name) if @heading.present? %>
        <% if params[:search].present? %>
          <h2>
            <%= page_entries_info @investments %>
            <%= t("management.budget_investments.search_results", count: @investments.size, search_term: params[:search]) %>
          </h2>
        <% end %>
      </div>

      <% @investments.each do |investment| %>
        <%= render "/budgets/investments/investment",
          investment: investment,
          investment_ids: @investment_ids,
          ballot: @ballot %>
      <% end %>

      <%= paginate @investments %>
    </div>
  </div>
</main>

Increase investments width in management section
Increase investments width in management section

I'm not sure whether it now looks worse on extra large screens, but I'm
positive it looks much better on medium and large screens, particularly
when investments have images.
