[](https://www.npmjs.com/package/@polymer/gold-cc-cvc-input)
[](https://travis-ci.org/PolymerElements/gold-cc-cvc-input)
[](https://webcomponents.org/element/@polymer/gold-cc-cvc-input)
## <gold-cc-cvc-input>
`gold-cc-cvc-input` is a single-line text field with Material Design styling
for entering a credit card's CVC (Card Verification Code). It supports both
4-digit Amex CVCs and non-Amex 3-digit CVCs
See: [Documentation](https://www.webcomponents.org/element/@polymer/gold-cc-cvc-input),
[Demo](https://www.webcomponents.org/element/@polymer/gold-cc-cvc-input/demo/demo/index.html).
## Usage
### Installation
```
npm install --save @polymer/gold-cc-cvc-input
```
### In an html file
```html
```
### In a Polymer 3 element
```js
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/gold-cc-input/gold-cc-input.js';
import '@polymer/gold-cc-cvc-input/gold-cc-cvc-input.js';
class SampleElement extends PolymerElement {
static get template() {
return html`
`;
}
}
customElements.define('sample-element', SampleElement);
```
## Contributing
If you want to send a PR to this element, here are
the instructions for running the tests and demo locally:
### Installation
```sh
git clone https://github.com/PolymerElements/gold-cc-cvc-input
cd gold-cc-cvc-input
npm install
npm install -g polymer-cli
```
### Running the demo locally
```sh
polymer serve --npm
open http://127.0.0.1:/demo/
```
### Running the tests
```sh
polymer test --npm
```