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Markdown

# Build a Markdown Previewer
2 years ago
**Demo:** [markdown-previewer.radii.page](https://markdown-previewer.radii.page/)
**Profile:** [https://www.freecodecamp.org/radii](https://www.freecodecamp.org/radii)
**Project specification:** [Build a Markdown Previewer](https://www.freecodecamp.org/learn/front-end-development-libraries/front-end-development-libraries-projects/build-a-markdown-previewer)
**[Tests](https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js)**
## Build and deploy as:
```{bash}
cd markdown-previewer
npm install
npm run build
cd ..
DOCKER_BUILDKIT=1 docker build -t radii/markdown-previewer:latest -f ./dockerfile ./markdown-previewer/build
docker run -p 8081:80 -it radii/markdown-previewer
```
Access WebApp at [http://localhost:8081](http://localhost:8081)
Note: you may replace `8081` with any other port number where you wish to make service available.
## Run tests as:
After building, go to to `public` sub-directory and edit `index.html` file and insert bellow code snippet immediately before closing `</body>` tag:
```{html}
<script src="https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js"></script>
```
Than start development instance as:
```{bash}
npm start
```
You should now see a hamburger on top-left of page. Tap/click it than select test suite `Markdown Previewer`. `Run Tests` and observe results.