Persona Template - Hamburger full screen menu

Hi, I am new at this. i started out with the persona template and its going along really well.

For some reason i can get the Hamburger menu to work like it does on this style.

picked a different style home page, that didnt have the hamburder menu icon that turns into a full page view of the menu. want to try to achieve this.

any help would be greatly appreciated!

Here is my site Read-Only: LINK
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