<div id="browse_status"></div>
- <div id="sidebar_loader">
- <img alt="<%= t("browse.start_rjs.loading") %>" class="loader" src="<%= image_path("searching.gif") %>">
+ <div id="sidebar_loader" class="my-3 text-center loader">
+ <div class="spinner-border" role="status">
+ <span class="visually-hidden"><%= t("browse.start_rjs.loading") %></span>
+ </div>
</div>
<div id="sidebar_content">