[](https://www.webcomponents.org/element/LostInBrittany/granite-alert)  # granite-alert > A set of [Bootstrap-like alert](http://getbootstrap.com/components/#alerts) elements > > Built on [lit-element](https://github.com/Polymer/lit-element) > > The old Polymer 2.x-1.x version is available on the [`polymer-hybrid` branch](https://github.com/LostInBrittany/granite-alert/tree/polymer-hybrid). ## Usage example ```html Be careful, my friend... Information is key ``` ## Install Install the component using [npm](https://www.npmjs.com/): ```sh $ npm i @granite-elements/granite-alert ``` Once installed, import it in your application: import '@granite-elements/granite-alert/granite-alert.js'; ## Running demos and tests in browser 1. Fork the `granite-alert` repository and clone it locally. 1. Make sure you have [npm](https://www.npmjs.com/) and the [Polymer CLI](https://www.polymer-project.org/3.0/docs/tools/polymer-cli) installed. 1. When in the `granite-alert` directory, run `npm install` to install dependencies. 1. Serve the project using Polyumer CLI: `polymer serve --npm` 1. Open the demo in the browser - http://127.0.0.1:8080/components/@greanite-elements/granite-alert/demo ## Attributes Attribute | Type | Default | Description --- | --- | --- | --- `level` | *String* | `"info"` | The level of the alert Alowed values for `level`: `info`, `warning`, `danger` and `success` ## Contributing 1. Fork it! 2. Create your feature branch: `git checkout -b my-new-feature` 3. Commit your changes: `git commit -m 'Add some feature'` 4. Push to the branch: `git push origin my-new-feature` 5. Submit a pull request :D ## License [MIT License](http://opensource.org/licenses/MIT)