added sticky style for table header to keep it above records when scrolling

1 files changed, 4 insertions, 0 deletions

diff --git a/GradeBook.scss b/GradeBook.scss
index 8ff92bd..462f253 100644
--- a/GradeBook.scss
+++ b/GradeBook.scss
@@ -170,6 +170,10 @@ body {
 		border: thin solid black;
 		border-collapse:  collapse;
 		background-color: $normal_bg;
+		thead {
+			top: 0;
+			position: sticky;
+		}
 		tr {
 			&:hover {
 				background-color: $table_hover_bg;