diff --git a/docs/source/_static/css/s5defs-roles.css b/docs/source/_static/css/s5defs-roles.css
index b688171bc3b88110ecd9a4721af30edbd326f129..ae0e69ccfd288b6fccbc23a4681569c71a20536d 100644
--- a/docs/source/_static/css/s5defs-roles.css
+++ b/docs/source/_static/css/s5defs-roles.css
@@ -80,4 +80,17 @@
 
 .purple {
     color: purple;
+}
+
+.bold {
+  font-weight: bold;
+}
+
+.italic {
+  font-style: italic;
+}
+
+.bolditalic {
+  font-weight: bold;
+  font-style: italic;
 }
\ No newline at end of file
diff --git a/docs/source/s5defs.txt b/docs/source/s5defs.txt
index 2ebfb95b7364efe86a5f6f7a47452ecaa38f50b5..84808408a4f51f650b46659470196ede04db1e22 100644
--- a/docs/source/s5defs.txt
+++ b/docs/source/s5defs.txt
@@ -26,7 +26,6 @@
 .. role:: navy
 .. role:: purple
 
-
 .. Text Sizes
    ==========
 
@@ -35,6 +34,12 @@
 .. role:: small
 .. role:: tiny
 
+.. Text Styles
+   ===========
+
+.. role:: bold
+.. role:: italic
+.. role:: bolditalic
 
 .. Display in Slides (Presentation Mode) Only
    ==========================================