blog/themes/chameleon/layout/_partial/post/nav.ejs

<% if (post.prev || post.next) { %>
<nav id="article-nav" class="article-nav">
  <% if (post.prev) { %>
    <a href="<%- url_for(post.prev.path) %>" id="article-nav-newer" class="article-nav-link-wrap newer">
      <strong class="article-nav-caption"><%= __('newer') %></strong>
      <div class="article-nav-title">
        <% if (post.prev.title) { %>
          <%= post.prev.title %>
        <% } else { %>
          (no title)
        <% } %>
      </div>
    </a>
  <% } else { %>
    <span id="article-nav-newer" class="article-nav-link-wrap newer"></span>
  <% } %>
  <% if (post.next) { %>
    <a href="<%- url_for(post.next.path) %>" id="article-nav-older" class="article-nav-link-wrap older">
      <strong class="article-nav-caption"><%= __('older') %></strong>
      <div class="article-nav-title"><%= post.next.title %></div>
    </a>
  <% } else { %>
    <span id="article-nav-older" class="article-nav-link-wrap older"></span>
  <% } %>
</nav>
<% } %>