diff --git a/src/main/java/org/gcube/portlets/widgets/imagepreviewerwidget/public/ImagePreviewer.css b/src/main/java/org/gcube/portlets/widgets/imagepreviewerwidget/public/ImagePreviewer.css
index 5c44d49..3547dba 100644
--- a/src/main/java/org/gcube/portlets/widgets/imagepreviewerwidget/public/ImagePreviewer.css
+++ b/src/main/java/org/gcube/portlets/widgets/imagepreviewerwidget/public/ImagePreviewer.css
@@ -1,22 +1,35 @@
 @media screen and (min-width: 1024px) {
 	.modal-custom {
-		width: 950px !important;
-		margin-left: -480px !important;
+		width: 90% !important;
+		margin-left: -45% !important;
 	}
 	.modal-body-custom {
-		height: 400px !important;
+		height: 700px !important;
+	}
+	.modal-header-custom>.close {
+		font-size: 40px;
 	}
 }
 
 @media screen and (min-width: 800px) and (max-width: 1024px) {
+	.modal-custom {
+		width: 85% !important;
+		margin-left: -42% !important;
+	}
 	.modal-body-custom {
-		height: 350px !important;
+		height: 600px !important;
 	}
 }
 
-@media screen and (min-width: 300px) and (max-width: 800px) {
+@media screen and (min-width: 600px) and (max-width: 800px) {
 	.modal-body-custom {
-		height: 280px !important;
+		height: 500px !important;
+	}
+}
+
+@media screen and (min-width: 300px) and (max-width: 600px) {
+	.modal-body-custom {
+		height: 300px !important;
 	}
 }
 
@@ -27,12 +40,13 @@
 .modal-body-custom {
 	background: black;
 	overflow-y: hidden !important;
+	max-height: 100% !important;
 }
 
 .modal-header-custom {
 	background: black;
 	border-bottom: black !important;
-	padding: 5px 5px 5px 5px !important;
+	padding: 5px 5px 5px 15px !important;
 }
 
 .modal-header-custom>.close {
@@ -53,11 +67,11 @@
 .image-container {
 	height: 90%;
 	width: 100%;
-	margin-bottom: 10px;
+	margin-bottom: 2%;
 }
 
 .command-container {
-	height: 5%;
+	height: 3%;
 	width: 100%;
 	vertical-align: baseline;
 }
@@ -72,7 +86,6 @@
 	-ms-transform: translate(-50%, -50%); /* IE 9 */
 	-webkit-transform: translate(-50%, -50%); /* Safari */
 	max-height: 100%;
-	max-width: 100%;
 	width: auto;
 }