diff --git a/css/general/layout.css b/css/general/layout.css
index ba770051df7155ef4cb68119dad2b134f8fdc6ee..959c99af5c2e14c4f6fe402cf9adc2429e4764f1 100644
--- a/css/general/layout.css
+++ b/css/general/layout.css
@@ -49,6 +49,10 @@ div.grid-3columns-auto {
 	grid-column-gap: 1em;
 }
 
+.border-bottom {
+	border-bottom: 1px solid;
+}
+
 .margin-top {
 	margin-top: 1em;
 }