[](https://www.npmjs.com/package/@polymer/iron-media-query)
[](https://travis-ci.org/PolymerElements/iron-media-query)
[](https://webcomponents.org/element/@polymer/iron-media-query)
## <iron-media-query>
`iron-media-query` can be used to data bind to a CSS media query.
The `query` property is a bare CSS media query.
The `query-matches` property is a boolean representing whether the page matches that media query.
See: [Documentation](https://www.webcomponents.org/element/@polymer/iron-media-query),
[Demo](https://www.webcomponents.org/element/@polymer/iron-media-query/demo/demo/index.html).
## Usage
### Installation
```
npm install --save @polymer/iron-media-query
```
### In an html file
```html
```
### In a Polymer 3 element
```js
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/iron-media-query/iron-media-query.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/iron-media-query
cd iron-media-query
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
```