Multiline Code Blocks
The <pl-code> tag can be used to enclose multiline code blocks in a question.html file. Here is an example:
<pl-code language="java">public class Node {
public int val;
public Node next;
public Node(int val, Node next) {
this.val = val;
this.next = next;
}
}</pl-code>

To add line numbers, modify the <pl-code> tag like this:
<pl-code language="java" show-line-numbers="true"> ... </pl-code>
You can access the official documentation for this question element here.