<nav class="posts_nav">
  <div class="post_nav prev_post"><%= link_to "« " + @post.prev.title, @post.prev if @post.prev %></div>
  <div class="post_nav next_post"><%= link_to @post.next.title + " »", @post.next if @post.next %></div>
</nav>

<nav class="posts_nav">
  <div class="post_nav prev_post"><%= link_to "« " + @post.prev.title, @post.prev if @post.prev %>&nbsp;</div>
  <div class="post_nav next_post">&nbsp;<%= link_to @post.next.title + " »", @post.next if @post.next %></div>
</nav>

Fix blog post nav block alignment when one or the other is empty
Fix blog post nav block alignment when one or the other is empty
