diff --git a/src/assets/css/src/2.blocks.pdf-viewer.css b/src/assets/css/src/2.blocks.pdf-viewer.css
index e9c8450..d3c097e 100644
--- a/src/assets/css/src/2.blocks.pdf-viewer.css
+++ b/src/assets/css/src/2.blocks.pdf-viewer.css
@@ -94,7 +94,7 @@
 /* Toolbar */
 .vpv-container .vpv-toolbar-wrapper {
   border-bottom-width: 0 !important;
-  border-top: 1px solid var(--color-700);
+  border-top: 1px solid var(--color-grey-700);
   padding-left: 1rem !important;
   height: 4.5rem !important; /* --vpv-toolbar-size */
   background-color: var(--color-black) !important; /* --vpv-toolbar-background-color */