diff --git a/share/misc/docbook.css b/share/misc/docbook.css
index 4a64134d0b..c08cd6e0de 100644
--- a/share/misc/docbook.css
+++ b/share/misc/docbook.css
@@ -194,6 +194,14 @@ BLOCKQUOTE.WARNING {
 	width: 85%;
 }
 
+BLOCKQUOTE.CAUTION {
+	color: #3E3535;
+	background: #FFC;
+	border: 1px solid #e59595;
+	padding: 0.2em 2em;
+	width: 85%;
+}
+
 .EXAMPLE {
 	background: #fefde6;
 	border: 1px solid #f1bb16;