theme folder edit _header.scss

upload/styles/cb_28/theme/scss/_header.scss

@@ -688,6 +688,7 @@
 		display: block !important;
 	}
 }
+
 @media only screen and (max-width: 767px) {
 	.navbar-header{
 		padding: 10px 20px 10px 10px;
@@ -950,6 +951,15 @@
 		}
 	}
 }
+
+@media only screen and (max-width:767px) {
+	.cd-popup{
+		.cb-popup-container {
+			width:90% ;
+		}
+	} 
+
+}
 @-webkit-keyframes horizontal {
   0% {
     transform: scale(0.1);

upload/styles/cb_28/theme/scss/all.scss

@@ -3680,4 +3680,13 @@ textarea#comment_box{
 			top:auto;
 		}
 	}
+}
+
+@media only screen and (max-width:360) {
+	.cd-popup{
+		.cb-popup-container {
+			width:90% ;
+		}
+	} 
+
 }