Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel is required to process package imports. If you need a different preprocessor remove all packages first.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

            
              
            
          
!

CSS

            
              /* Bootstrap 4 Reset */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-family: sans-serif;
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -ms-overflow-style: scrollbar;
  -webkit-tap-highlight-color: transparent;
  font-size: 62.5%;
}

@-ms-viewport {
  width: device-width;
}

article, aside, dialog, figcaption, figure, footer, header, hgroup, main, nav, section {
  display: block;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  font-size: 1.4rem;
  font-weight: normal;
  line-height: 1.5;
  color: #212529;
  text-align: left;
  background-color: #fff;
}

[tabindex="-1"]:focus {
  outline: none !important;
}

hr {
  box-sizing: content-box;
  height: 0;
  overflow: visible;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: .5rem;
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

abbr[title],
abbr[data-original-title] {
  text-decoration: underline;
  -webkit-text-decoration: underline dotted;
          text-decoration: underline dotted;
  cursor: help;
  border-bottom: 0;
}

address {
  margin-bottom: 1rem;
  font-style: normal;
  line-height: inherit;
}

ol,
ul,
dl {
  margin-top: 0;
  margin-bottom: 1rem;
}

ol ol,
ul ul,
ol ul,
ul ol {
  margin-bottom: 0;
}

dt {
  font-weight: bold;
}

dd {
  margin-bottom: .5rem;
  margin-left: 0;
}

blockquote {
  margin: 0 0 1rem;
}

dfn {
  font-style: italic;
}

b,
strong {
  font-weight: bolder;
}

small {
  font-size: 80%;
}

sub,
sup {
  position: relative;
  font-size: 75%;
  line-height: 0;
  vertical-align: baseline;
}

sub {
  bottom: -.25em;
}

sup {
  top: -.5em;
}

a {
  color: #007bff;
  text-decoration: none;
  background-color: transparent;
  -webkit-text-decoration-skip: objects;
}

a:hover {
  color: #0056b3;
  text-decoration: underline;
}

a:not([href]):not([tabindex]) {
  color: inherit;
  text-decoration: none;
}

a:not([href]):not([tabindex]):focus, a:not([href]):not([tabindex]):hover {
  color: inherit;
  text-decoration: none;
}

a:not([href]):not([tabindex]):focus {
  outline: 0;
}

pre,
code,
kbd,
samp {
  font-family: monospace, monospace;
  font-size: 1em;
}

pre {
  margin-top: 0;
  margin-bottom: 1rem;
  overflow: auto;
  -ms-overflow-style: scrollbar;
}

figure {
  margin: 0 0 1rem;
}

img {
  vertical-align: middle;
  border-style: none;
}

svg:not(:root) {
  overflow: hidden;
}

a,
area,
button,
[role="button"],
input:not([type=range]),
label,
select,
summary,
textarea {
  -ms-touch-action: manipulation;
  touch-action: manipulation;
}

table {
  border-collapse: collapse;
}

caption {
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  color: #868e96;
  text-align: left;
  caption-side: bottom;
}

th {
  text-align: inherit;
}

label {
  display: inline-block;
  margin-bottom: .5rem;
}

button {
  border-radius: 0;
  border: solid 1px #ccc;
  background-color: #ccc;
  overflow: hidden;
}

button:focus {
  outline: 1px dotted;
  outline: 5px auto -webkit-focus-ring-color;
}

input,
button,
select,
optgroup,
textarea {
  margin: 0;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

button,
input {
  overflow: visible;
}

button,
select {
  text-transform: none;
}

button,
html [type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
}

button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  padding: 0;
  border-style: none;
}

input[type="radio"],
input[type="checkbox"] {
  box-sizing: border-box;
  padding: 0;
}

input[type="date"],
input[type="time"],
input[type="datetime-local"],
input[type="month"] {
  -webkit-appearance: listbox;
}

textarea {
  overflow: auto;
  resize: vertical;
}

fieldset {
  min-width: 0;
  padding: 0;
  margin: 0;
  border: 0;
}

legend {
  display: block;
  width: 100%;
  max-width: 100%;
  padding: 0;
  margin-bottom: .5rem;
  font-size: 1.5rem;
  line-height: inherit;
  color: inherit;
  white-space: normal;
}

progress {
  vertical-align: baseline;
}

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

[type="search"] {
  outline-offset: -2px;
  -webkit-appearance: none;
}

[type="search"]::-webkit-search-cancel-button,
[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

::-webkit-file-upload-button {
  font: inherit;
  -webkit-appearance: button;
}

output {
  display: inline-block;
}

summary {
  display: list-item;
}

template {
  display: none;
}

[hidden] {
  display: none !important;
}

html, body, h1, h2, h3, h4, h5, h6, p, ol, ul, li, dl,
dt, dd, blockquote, address, table {
  margin: 0;
  padding: 0;
}

* {
  font-weight: 100;
}


/****************/
/* Local Styles */
/****************/

header {
  background-color: #333;
  padding: 20px;
}
header h1 {
  color: #fff;
  margin: 0;
  font-size: 2.5rem
}
header h5 {
  margin: 0;
  color: #fff;
}
.last-update {
  padding: 10px 20px;
  background-color: #888;
  color: #fff;
}
a {
  text-decoration: none;
  color: #333;
}
a:visited {
  color: #999;
}

.top-items {
  text-align: left;
  margin-left: 20px;
}
.top-items > button {
  padding: 0.2em 0.5em;
  font-size: 1.4em;
  background-color: #ddd;
  border: solid 2px #aaa;
  transition: all .25s ease-out;
  cursor: pointer; 
}
.top-items > button:hover {
  box-shadow: 0 0 8px rgb(0,0,0);
  background-color: #888;
  border-color: #000;
  color: #fff;
}
.top-items > button:active {
  box-shadow: 0 0 0 rgb(0,0,0);
}

.item {
  float: left;
  width: 100%;
  margin: .45em 0;
}
.item .title a {
  font-size: 2rem;
  font-weight: 400;
}
.item .title .domain {
  color: #333;
  font-size: 1.5rem;
  display: inline-block;
  margin-left: 10px;
}
.item .vitals {
  float: left;
  width: 100px;
  text-align: center;
}
.item .vitals .score {
  color: rgb(5, 151, 255);
  font-size: 2em;
  font-weight: 200;
}
.item .vitals .comments {
  clear: left;
}
.item .vitals .comments a {
  text-decoration: none;
  color: #EEE;
}
.item .content {
  float: left;
  width: calc(100% - 100px);
}
.sort-button--paragraph {
  margin: 10px 0;
}
.sort-button--paragraph button + button {
  margin-left: 20px;
}

            
          
!

JS

            
              /** @jsx h */
const { h, Component} = composi

// Rest news list
function ResetButton({ loadItems }) {
  return <button class="button" onclick={loadItems}>Reset!</button>
}

// Sort new items by importance
function SortButton({ sortByScore }) {
  return <button class="button" onclick={sortByScore}>Sort!</button>
}

// Title
function Title() {
  return (
    <header>
      <h1>HackerNews Minimal</h1>
      <h5>Made with Composi</h5>
    </header>
  )
}

function Navigation({lastUpdate, sortByScore,loadItems}) {
  return (
    <div class="navigation">
      <Title/>
      <h4 class='last-update'>Last updated at {lastUpdate ? lastUpdate.toString() : 'never'}</h4>
      <p class='sort-button--paragraph'>
        <div class="top-items">
          <SortButton sortByScore={sortByScore}/> 
          <ResetButton loadItems={loadItems}/>
        </div>
      </p>
    </div>
  )
}

let getDomain = url => url && (url.split('/')[ ~url.indexOf('://') ? 2 : 0 ]).replace(/^www\./,'') || null

function Item({item}) {
	return (
    <li class="item">
      <div class="vitals">
        <div class="score">{item.score}</div>
        <div class="comments">
          <a target="_blank" href={`https://news.ycombinator.com/item?id=${item.id}`}>{item.descendants}</a>
        </div>
      </div>
      <div class="content">
        <div class="title">
          <a target="_blank" href={item.url}>{item.title}</a>
          <span class="domain">({ getDomain(item.url) })</span>
        </div>
      </div>
    </li>
  )
}


const API_ORIGIN = 'https://hacker-news.firebaseio.com'

const asJson = r => r.json()


class App extends Component {
  constructor(props) {
    super(props)
    this.state = {
      lastUpdate: new Date(),
      items: []
    }
  }

  render(data) {
    // bind sortByScore to "this" so that Navigation component has access to App's state.
    return (
      <div id="app">
        <Navigation lastUpdate={this.state.lastUpdate} sortByScore={this.sortByScore.bind(this)} loadItems={this.loadItems.bind(this)} />
        <ul>
          {
            data.items.map(item => <Item item={item}/>)
          }
        </ul>
      </div>
    )
  }
  componentDidMount() {
		this.loadItems()
	}
  loadItems() {
		fetch(`${API_ORIGIN}/v0/topstories.json`).then(asJson)
			.then( items => Promise.all( items.slice(0, 19).map(
				item => fetch(`${API_ORIGIN}/v0/item/${item}.json`).then(asJson)
			)) )
			.then( items => this.setState({ items }) )
	}
  sortByScore() {
		let items = this.state.items
		items.sort( (a, b) => b.score - a.score )
		this.setState({ items })
	}
}

const app = new App({
  container: 'body'
})
            
          
!
999px

Console