Modular pages are difficult to understand at first but once you get to know about it, it would be very easy to work with. It enables to create a single page from its child pages. It has the ability to build complex one page layouts from modular content pages.

Modular pages are set as non-routable because they cannot be reached directly through an URL. They are identified by _ (underscore) before the folder name. It is a collection of pages that are displayed one above each to get a single page. For example, user/pages/home/_header..

Folder Structure

In case of one-page skeleton, you can find this page in the 01.home folder. In this, you get a single modular .md file that tells which pages must be included and the order of the pages to display. modular.html.twig can be found in your present theme folder.

In the image below, you can see a folder structure that has been created for modular pages.

Every sub-folder must contain a .md file that describes a markdown file.

Firstly, you must create sub folders in /users/pages/01.home folder. Next, each folder must contain a .md file and a modular.md file.

When you create the sub folder, the image and file both must be in the same folder.

How to Create Modular Page

To create modular pages, you must follow the given steps.

Step 1 − Create a few pages in /user/pages/01.home/. folder. In the image below, you can see we have created two folders along with a modular.md file.

Step 2 − To create a modular page, you must create a file in each folder and name it as text.md.

Step 3 − Next, add your code in text.md file, save it and run the same.

Example

Save all the four pages as .md file. Here we have created 4 pages and named as text.md, text1.md, text2.md and text3.md.

---
title: Bio-diversity
---

## Bio-diversity

Biodiversity refers to the variety of life. It is seen in the number of species in an 
[ecosystem](https://simple.wikipedia.org/wiki/Ecosystem) or on the entire [Earth]
(https://simple.wikipedia.org/wiki/Earth). Biodiversity gets used as a measure of the
health of biological systems, and to see if there is a danger that too many species
become[extinct](https://simple.wikipedia.org/wiki/Extinct).

Now, create 4 pages, add them to the templatesmodular folder as shown below.

Next, go to home page and refresh, you can see the changes.

In the new navigation bar, you can see the four file links.