Now that you know how to create a custom content page, it's time to give them access via a menu link.

I want to create a link to my custom content page called "Offers on fans" to be part of my horizontal menu. 

Menu manager can be accessed via Appearance module.

As you can see, I already have a menu called side menu which is a custom menu created by me.

Click on Edit Menu on the top right of the screen.

Now, you will be presented with a drop down to select what new content page you'd like to assign to your menu. 

Click on Add and this will give you an option to add a name for the link and select your content page from drop down below labelled as Content Pages.

As you can see, I have typed in a name for my link, selected my content page from drop down and clicked Add. This will take you back to the previous screen where you will hit the Save Menu button on the top right corner. 

Job done - Now your content page is part of your horizontal menu.