diff --git a/sass/_main.scss b/sass/_main.scss
index 4e29240..ff89742 100644
--- a/sass/_main.scss
+++ b/sass/_main.scss
@@ -51,7 +51,7 @@ body {
 	@keyframes highlight-in-out {
 		50% {
 			font-weight: bolder;
-			letter-spacing: 0.125rem;
+			letter-spacing: 0.0125em;
 		}
 	}