https://github.com/polymerelements/iron-flex-layout
Style mixins for cross-platform flex-box layouts
https://github.com/polymerelements/iron-flex-layout
Last synced: 10 months ago
JSON representation
Style mixins for cross-platform flex-box layouts
- Host: GitHub
- URL: https://github.com/polymerelements/iron-flex-layout
- Owner: PolymerElements
- Created: 2015-04-17T18:40:10.000Z (about 11 years ago)
- Default Branch: master
- Last Pushed: 2023-10-16T14:02:55.000Z (over 2 years ago)
- Last Synced: 2024-12-14T18:44:01.875Z (over 1 year ago)
- Language: HTML
- Homepage: https://www.webcomponents.org/element/PolymerElements/iron-flex-layout
- Size: 333 KB
- Stars: 84
- Watchers: 17
- Forks: 73
- Open Issues: 16
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
[](https://www.npmjs.com/package/@polymer/iron-flex-layout)
[](https://travis-ci.org/PolymerElements/iron-flex-layout)
[](https://webcomponents.org/element/@polymer/iron-flex-layout)
## <iron-flex-layout>
The `` component provides simple ways to use
[CSS flexible box layout](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Flexible_boxes),
also known as flexbox. Note that this is an old element, that was written
before all modern browsers had non-prefixed flex styles. As such, nowadays you
don't really need to use this element anymore, and can use CSS flex styles
directly in your code.
See: [Documentation](https://www.webcomponents.org/element/@polymer/iron-flex-layout),
[Demo](https://www.webcomponents.org/element/@polymer/iron-flex-layout/demo/demo/index.html).
This component provides two different ways to use flexbox:
1. [Layout classes](https://github.com/PolymerElements/iron-flex-layout/tree/master/iron-flex-layout-classes.html).
The layout class stylesheet provides a simple set of class-based flexbox rules, that
let you specify layout properties directly in markup. You must include this file
in every element that needs to use them.
1. [Custom CSS mixins](https://github.com/PolymerElements/iron-flex-layout/blob/master/iron-flex-layout.html).
The mixin stylesheet includes custom CSS mixins that can be applied inside a CSS rule using the `@apply` function.
## Usage
### Installation
```
npm install --save @polymer/iron-flex-layout
```
### In a Polymer 3 element
```js
import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/iron-flex-layout/iron-flex-layout-classes.js';
class SampleElement extends PolymerElement {
static get template() {
return html`
.test { width: 100px; }
horizontal layout center alignment
`;
}
}
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-flex-layout
cd iron-flex-layout
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
```