diff --git a/public/opac/css/responsive.css b/public/opac/css/responsive.css
index 2b06b86c3aac473f5b0ffd6714c8e5e8508a71ad..89d3212257f9b6cbcf3266891a69766afed1f640 100644
--- a/public/opac/css/responsive.css
+++ b/public/opac/css/responsive.css
@@ -1,4 +1,4 @@
-@media screen and (max-width: 1024px) {
+@media screen and (max-device-width: 1024px) {
 
     body * {
 	box-sizing: border-box;
@@ -683,7 +683,7 @@
 
 
 
-@media screen and (max-width: 580px) {
+@media screen and (max-device-width: 580px) {
 
     #col_wrapper .colGauche .boite {
 	width: 100% !important;