diff --git a/src/assets/css/src/2.blocks.pdf-viewer.css b/src/assets/css/src/2.blocks.pdf-viewer.css
index b719250..9eb7eb5 100644
--- a/src/assets/css/src/2.blocks.pdf-viewer.css
+++ b/src/assets/css/src/2.blocks.pdf-viewer.css
@@ -132,5 +132,5 @@
   padding: 0.625rem;
 }
 #download-pdf {
-  right: 4.5;
+  right: 4.5rem;
 }