update

css/stylee.css

@@ -1,7 +1,6 @@
 html {
   box-sizing: border-box;
   height: 100%;
-  overflow: hidden;
 }
 
 *,
@@ -19,7 +18,6 @@ body {
   font-family: "Arial", sans-serif;
   line-height: 1.3;
   font-size: 18px;
-  overflow: hidden;
 }
 body > header,
 body > footer {
@@ -299,6 +297,12 @@ body > main {
   overflow: hidden;
   z-index: 1;
 }
+@media (min-width: 1500px) {
+  .wrap-course-content {
+    width: 1920px;
+    height: 1080px;
+  }
+}
 
 #coursenav-offcanvas {
   border-top-right-radius: 30px !important;