diff --git a/src/api/src/create_book/generators/pdf/stylesheet.css b/src/api/src/create_book/generators/pdf/stylesheet.css
index 14149a6..f2ca7ac 100644
--- a/src/api/src/create_book/generators/pdf/stylesheet.css
+++ b/src/api/src/create_book/generators/pdf/stylesheet.css
@@ -205,6 +205,8 @@ section {
 #contents a {
   color: inherit;
   text-decoration: none;
+  display: flex;
+  justify-content: space-between;
 }
 #contents a::before {
   content: target-counter(attr(href), h2-counter) '. ' target-text(attr(href));