fixed docs css

Author: eadwinCode

docs/stylesheets/extra.css

@@ -21,6 +21,20 @@ nav.md-nav--primary ul.md-nav__list li.md-nav__item--active.md-nav__item--nested
     max-width: 80%;
 }
 
+/* Styles for devices with a screen width of 768px or less (e.g., tablets and mobile phones) */
+@media only screen and (max-width: 768px) {
+    .md-grid {
+        max-width: 90%;
+    }
+}
+
+/* Styles for devices with a screen width of 480px or less (e.g., mobile phones) */
+@media only screen and (max-width: 480px) {
+    .md-grid {
+        max-width: 95%;
+    }
+}
+
 :root {
   --md-primary-fg-color: #00b4cc;
   --md-primary-fg-color--light: #2568a7;