How to scroll the source code in WordPress

How can I show all of the source code for mobile sites with plugin “Enlighter – Customizable Syntax Highlighter” in WordPress?

GOAL

To scroll source code embedded with Enlighter – Customizable Syntax Highlighter.

When my blog is seen in mobile, part of the source code is hidden and invisible.

Environment

WordPress 5.5.1
Enlighter – Customizable Syntax Highlighter 4.3.1

Method

Open Elighter>Appearance

Change the drop-down menu “Text overflow” to “Add scrollbar” and save changes.

Result

The scroll bar is add and I can see all of the source code from left end to the right end.