2.3 #components.entry-breadcrumbs Breadcrumbs
Toggle example guides Toggle HTML markup
Display breadcrumbs on posts and categories.
Note that the span inside the links is required so that the links can be underlined without underlining the pseudo elements that make up the arrows.
Note also that the Toolbelt and Jetpack plugins add all sorts of other html to the breadcrumbs so that microformats work properly.
Example
Markup
<nav class="entry-breadcrumbs">
<a href="#" class="home-link"><span>Home</span></a>
<a href="#" itemprop="item"><span>Page</span></a>
<span class="current-page">Child Page</span>
</nav>
Source:
assets/sass/lib/elements/_entry.scss, line 186