style fix

app/page.tsx

@@ -1,4 +1,5 @@
 import JavaText from "./java_tutorial.json"
+import {Divider} from "@nextui-org/divider"
 
 export default function MainPage() {
     const JavaContent = JavaText
@@ -14,10 +15,10 @@ export default function MainPage() {
                                 <div key={itemIndex}>
                                     <h3 className="text-2xl font-bold mb-4">{item.title}</h3>
                                     <p className="text-muted-foreground mb-6">{item.description}</p>
-                                    <div className="bg-background rounded-lg p-6 shadow my-4">
-                                        <pre className="text-sm font-mono">
-                                            <code className="text-pretty">{item.code}</code>
-                                        </pre>
+                                    <div className="bg-background rounded-lg p-6 shadow-2xl my-4">
+                                    <pre className="text-sm font-mono">
+                                        <code className="text-pretty">{item.code}</code>
+                                    </pre>
                                     </div>
                                     <p className="text-pretty">{item.explanation}</p>
                                 </div>