--- /dev/null
+= Inline Text Styles
+ifndef::env-site,env-github[]
+include::_attributes.adoc[]
+endif::[]
+
+////
+When creating a UI theme for Antora, there are certain elements in the UI that require support from the CSS to work correctly.
+This list includes elements in the shell (i.e., frame) and in the document content.
+This document identifies these UI elements.
+////
+
+[#bold]
+== Bold text
+
+How xref:antora:asciidoc:bold.adoc[text marked up as bold] appears on your site depends on the fonts loaded by the UI and any CSS styles it applies to the `<strong>` HTML tag.
+
+[source,html]
+----
+<p>A bold <strong>word</strong>, and a <strong>bold phrase</strong>.</p>
+----
+
+In the default UI, the `strong` element, specified in [.path]_css/base.css_, uses the 500 weight fonts loaded by the typeface stylesheets.