diff --git a/prototype/style.css b/prototype/style.css
index fad4ba0..4d2819d 100644
--- a/prototype/style.css
+++ b/prototype/style.css
@@ -100,7 +100,7 @@ header .buttonList {
 	padding: 1rem;
 }
 
-@media screen and not (min-width: 60rem) {
+@media not screen and (min-width: 60rem) {
 	aside {
 		margin-bottom: 1rem;
 	}
@@ -157,7 +157,7 @@ header .buttonList {
 	}
 }
 
-@media screen and not (min-width: 80rem) {
+@media not screen and (min-width: 80rem) {
 	.collapse {
 		display: none;
 	}