diff --git a/debugging/book-library/index.html b/debugging/book-library/index.html
index 23acfa71..77065369 100644
--- a/debugging/book-library/index.html
+++ b/debugging/book-library/index.html
@@ -1,11 +1,9 @@
-
- Virtual Library
+
+
@@ -31,7 +29,7 @@ Library
Library
/>
Library
class="form-control"
id="pages"
name="pages"
+ min="1"
+ step="1"
+ oninput="this.value = this.value.replace(/[^0-9]/g, '').replace(/^0+/, '');"
required
/>