diff --git a/styles.css b/styles.css
index 11b6fdb..0e30e21 100644
--- a/styles.css
+++ b/styles.css
@@ -32,7 +32,7 @@ body {
 }
 
 .span-two {
-  grid-column: span 2;
+  grid-row: span 2;
 }
 
 .output {
@@ -55,4 +55,4 @@ body {
 .output .current-operand {
   color: white;
   font-size: 2.5rem;
-}
\ No newline at end of file
+}