diff --git a/manual/resources/custom.css b/manual/resources/custom.css
index e05f1bd633..1e44ea8e26 100644
--- a/manual/resources/custom.css
+++ b/manual/resources/custom.css
@@ -18,6 +18,10 @@
     div.sphinxsidebar { overflow-y: auto; max-height: calc(100vh - 25px) }
 }
 
+pre {
+    white-space: pre-wrap;
+}
+
 div.body p, div.body dd, div.body li, div.body blockquote {
     text-align: justify;
 }