Modern Business: Code tidying for columns spacing commit

modern-business/sass/blocks/_blocks.scss

@@ -874,8 +874,8 @@
 		@include media(tablet) {
 
 			.wp-block-column {
-				margin-left: #{0.5* $size__spacing-unit};
-				margin-right: #{0.5* $size__spacing-unit};
+				margin-left: #{0.5 * $size__spacing-unit};
+				margin-right: #{0.5 * $size__spacing-unit};
 
 				&:first-child {
 					margin-left: 0;