# valle-card > Awesome valle card element - Web Component using Polymer 3x ## How to install and use: 1 - Install the element using [Yarn](http://yarn.io/): ```sh $ yarn add @valle/valle-card ``` 2 - Import the element: ```html ``` or in your javascript file ```js import "valle-card/valle-card.js"; ``` 3 - Start using it! ```html ``` ## Styling The following custom properties and mixins are available for styling: Custom property | Default | Description :--- |:--- |:--- --valle-card-bg-color | `#fff` | Valle card background color --valle-card-width | `400px` | Valle card max-width --valle-card-padding | `16px` | Valle card padding --valle-card-margin | `16px` | Valle card margin (used to calculate the valle card width) ## Browser Support Using the [webcomponents.js](https://github.com/WebComponents/webcomponentsjs):  |  |  |  | |  | :---: | :---: | :---: | :---: | :---: | :---: | Latest ✔ | Latest ✔ | Latest ✔ | Latest ✔ | 11+ | Latest ✔ ## Development 1 - Verify if you have [node](http://nodejs.org/) and [yarn](http://yarn.io/) installed. 2 - Install [Polymer-CLI](https://www.polymer-project.org/1.0/docs/tools/polymer-cli): ```sh $ [sudo] yarn global add polymer-cli ``` 3 - Install local dependencies: ```sh $ yarn install ``` 4 - Start the development server: ```sh $ polymer serve ``` Go to [localhost:8080/components/valle-card/](http://localhost:8080/components/valle-card/) ## Versioning To keep better organization of releases we follow the [Semantic Versioning 2.0.0](http://semver.org/) guidelines. ## Contributing Find on our [issues](https://github.com/valleweb/valle-card/issues/) the next steps of the project ;)
Want to contribute? [Follow these recommendations](https://github.com/valleweb/valle-card/blob/master/CONTRIBUTING.md). ## History See [Releases](https://github.com/valleweb/valle-card/releases) for detailed changelog. ## License [MIT License](https://github.com/valleweb/valle-card/blob/master/LICENSE.md) © [valleweb](https://github.com/orgs/valleweb/people)