Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

JavaScript

Babel includes JSX processing.

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

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Auto Save

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.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

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

Visit your global Editor Settings.

HTML

              
                <todo-mvc></todo-mvc>

              
            
!

CSS

              
                html,
body {
	margin: 0;
	padding: 0;
}

button {
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
	font-size: 100%;
	vertical-align: baseline;
	font-family: inherit;
	color: inherit;
	-webkit-appearance: none;
	/*-moz-appearance: none;*/
	-ms-appearance: none;
	-o-appearance: none;
	appearance: none;
}

body {
	font: 14px 'Helvetica Neue', Helvetica, Arial, sans-serif;
	line-height: 1.4em;
	background: #eaeaea url('bg.png');
	color: #4d4d4d;
	width: 550px;
	margin: 0 auto;
	-webkit-font-smoothing: antialiased;
	-moz-font-smoothing: antialiased;
	-ms-font-smoothing: antialiased;
	-o-font-smoothing: antialiased;
	font-smoothing: antialiased;
}

#todoapp {
	background: #fff;
	background: rgba(255, 255, 255, 0.9);
	margin: 130px 0 40px 0;
	border: 1px solid #ccc;
	position: relative;
	border-top-left-radius: 2px;
	border-top-right-radius: 2px;
	box-shadow: 0 2px 6px 0 rgba(0, 0, 0, 0.2),
				0 25px 50px 0 rgba(0, 0, 0, 0.15);
}

#todoapp:before {
	content: '';
	border-left: 1px solid #f5d6d6;
	border-right: 1px solid #f5d6d6;
	width: 2px;
	position: absolute;
	top: 0;
	left: 40px;
	height: 100%;
}

#todoapp input::-webkit-input-placeholder {
	font-style: italic;
}

#todoapp input::-moz-placeholder {
	font-style: italic;
	color: #a9a9a9;
}

#todoapp h1 {
	position: absolute;
	top: -120px;
	width: 100%;
	font-size: 70px;
	font-weight: bold;
	text-align: center;
	color: #b3b3b3;
	color: rgba(255, 255, 255, 0.3);
	text-shadow: -1px -1px rgba(0, 0, 0, 0.2);
	-webkit-text-rendering: optimizeLegibility;
	-moz-text-rendering: optimizeLegibility;
	-ms-text-rendering: optimizeLegibility;
	-o-text-rendering: optimizeLegibility;
	text-rendering: optimizeLegibility;
}

#header {
	padding-top: 15px;
	border-radius: inherit;
}

#header:before {
	content: '';
	position: absolute;
	top: 0;
	right: 0;
	left: 0;
	height: 15px;
	z-index: 2;
	border-bottom: 1px solid #6c615c;
	background: #8d7d77;
	background: -webkit-gradient(linear, left top, left bottom, from(rgba(132, 110, 100, 0.8)),to(rgba(101, 84, 76, 0.8)));
	background: -webkit-linear-gradient(top, rgba(132, 110, 100, 0.8), rgba(101, 84, 76, 0.8));
	background: -moz-linear-gradient(top, rgba(132, 110, 100, 0.8), rgba(101, 84, 76, 0.8));
	background: -o-linear-gradient(top, rgba(132, 110, 100, 0.8), rgba(101, 84, 76, 0.8));
	background: -ms-linear-gradient(top, rgba(132, 110, 100, 0.8), rgba(101, 84, 76, 0.8));
	background: linear-gradient(top, rgba(132, 110, 100, 0.8), rgba(101, 84, 76, 0.8));
	filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,StartColorStr='#9d8b83', EndColorStr='#847670');
	border-top-left-radius: 1px;
	border-top-right-radius: 1px;
}

#new-todo,
.edit {
	position: relative;
	margin: 0;
	width: 100%;
	font-size: 24px;
	font-family: inherit;
	line-height: 1.4em;
	border: 0;
	outline: none;
	color: inherit;
	padding: 6px;
	border: 1px solid #999;
	box-shadow: inset 0 -1px 5px 0 rgba(0, 0, 0, 0.2);
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	-ms-box-sizing: border-box;
	-o-box-sizing: border-box;
	box-sizing: border-box;
	-webkit-font-smoothing: antialiased;
	-moz-font-smoothing: antialiased;
	-ms-font-smoothing: antialiased;
	-o-font-smoothing: antialiased;
	font-smoothing: antialiased;
}

#new-todo {
	padding: 16px 16px 16px 60px;
	border: none;
	background: rgba(0, 0, 0, 0.02);
	z-index: 2;
	box-shadow: none;
}

#main {
	position: relative;
	z-index: 2;
	border-top: 1px dotted #adadad;
}

label[for='toggle-all'] {
	display: none;
}

#toggle-all {
	position: absolute;
	top: -42px;
	left: -4px;
	width: 40px;
	text-align: center;
	border: none; /* Mobile Safari */
}

#toggle-all:before {
	content: ">";
	font-size: 28px;
	color: #d9d9d9;
	padding: 0 25px 7px;
}

#toggle-all:checked:before {
	color: #737373;
}

#todo-list {
	margin: 0;
	padding: 0;
	list-style: none;
}

#todo-list li {
	position: relative;
	font-size: 24px;
	border-bottom: 1px dotted #ccc;
}

#todo-list li:last-child {
	border-bottom: none;
}

#todo-list li.saving {
	font-style: italic;
}
#todoapp #todo-list li.destroying label {
	font-style: italic;
    color: #a88a8a;
}

#todo-list li.editing {
	border-bottom: none;
	padding: 0;
}

#todo-list li.editing .edit {
	display: block;
	width: 506px;
	padding: 13px 17px 12px 17px;
	margin: 0 0 0 43px;
}

#todo-list li.editing .view {
	display: none;
}

#todo-list li .toggle {
	text-align: center;
	width: 40px;
	/* auto, since non-WebKit browsers doesn’t support input styling */
	height: auto;
	position: absolute;
	top: 0;
	bottom: 0;
	margin: auto 0;
	border: none; /* Mobile Safari */
	-webkit-appearance: none;
	/*-moz-appearance: none;*/
	-ms-appearance: none;
	-o-appearance: none;
	appearance: none;
}

#todo-list li .toggle:after {
	content: '\2713';
	line-height: 43px; /* 40 + a couple of pixels visual adjustment */
	font-size: 20px;
	color: #d9d9d9;
	text-shadow: 0 -1px 0 #bfbfbf;
}

#todo-list li .toggle:checked:after {
	color: #85ada7;
	text-shadow: 0 1px 0 #669991;
	bottom: 1px;
	position: relative;
}

#todo-list li label {
	word-break: break-word;
	padding: 15px;
	margin-left: 45px;
	display: block;
	line-height: 1.2;
	-webkit-transition: color 0.4s;
	-moz-transition: color 0.4s;
	-ms-transition: color 0.4s;
	-o-transition: color 0.4s;
	transition: color 0.4s;
}

#todo-list li.completed label {
	color: #a9a9a9;
	text-decoration: line-through;
}

#todo-list li .destroy {
	display: none;
	position: absolute;
	top: 0;
	right: 10px;
	bottom: 0;
	width: 40px;
	height: 40px;
	margin: auto 0;
	font-size: 22px;
	color: #a88a8a;
	-webkit-transition: all 0.2s;
	-moz-transition: all 0.2s;
	-ms-transition: all 0.2s;
	-o-transition: all 0.2s;
	transition: all 0.2s;
}

#todo-list li .destroy:hover {
	text-shadow: 0 0 1px #000,
				 0 0 10px rgba(199, 107, 107, 0.8);
	-webkit-transform: scale(1.3);
	-moz-transform: scale(1.3);
	-ms-transform: scale(1.3);
	-o-transform: scale(1.3);
	transform: scale(1.3);
}

#todo-list li .destroy:after {
	content: 'x';
}

#todo-list li:hover .destroy {
	display: block;
}

#todo-list li .edit {
	display: none;
}

#todo-list li.editing:last-child {
	margin-bottom: -1px;
}

#footer {
	color: #777;
	padding: 0 15px;
	position: absolute;
	right: 0;
	bottom: -31px;
	left: 0;
	height: 20px;
	z-index: 1;
	text-align: center;
}

#footer:before {
	content: '';
	position: absolute;
	right: 0;
	bottom: 31px;
	left: 0;
	height: 58px;
	z-index: -1;
	box-shadow: 0 1px 1px rgba(0, 0, 0, 0.3),
				0 6px 0 -3px rgba(255, 255, 255, 0.8),
				0 7px 1px -3px rgba(0, 0, 0, 0.3),
				0 43px 0 -6px rgba(255, 255, 255, 0.8),
				0 44px 2px -6px rgba(0, 0, 0, 0.2);
}

#todo-count {
	float: left;
	text-align: left;
}

#filters {
	margin: 0;
	padding: 0;
	list-style: none;
	position: absolute;
	right: 0;
	left: 0;
}

#filters li {
	display: inline;
}

#filters li a {
	color: #83756f;
	margin: 2px;
	text-decoration: none;
}

#filters li a.selected {
	font-weight: bold;
}

#clear-completed {
	float: right;
	position: relative;
	line-height: 20px;
	text-decoration: none;
	background: rgba(0, 0, 0, 0.1);
	font-size: 11px;
	padding: 0 10px;
	border-radius: 3px;
	box-shadow: 0 -1px 0 0 rgba(0, 0, 0, 0.2);
}

#clear-completed:hover {
	background: rgba(0, 0, 0, 0.15);
	box-shadow: 0 -1px 0 0 rgba(0, 0, 0, 0.3);
}

#info {
	margin: 65px auto 0;
	color: #a6a6a6;
	font-size: 12px;
	text-shadow: 0 1px 0 rgba(255, 255, 255, 0.7);
	text-align: center;
}

#info a {
	color: inherit;
}

/*
	Hack to remove background from Mobile Safari.
	Can’t use it globally since it destroys checkboxes in Firefox and Opera
*/
@media screen and (-webkit-min-device-pixel-ratio:0) {
	#toggle-all,
	#todo-list li .toggle {
		background: none;
	}

	#todo-list li .toggle {
		height: 40px;
	}

	#toggle-all {
		top: -56px;
		left: -15px;
		width: 65px;
		height: 41px;
		-webkit-transform: rotate(90deg);
		transform: rotate(90deg);
		-webkit-appearance: none;
		appearance: none;
	}
}

.hidden{
	display:none;
}

hr {
	margin: 20px 0;
	border: 0;
	border-top: 1px dashed #C5C5C5;
	border-bottom: 1px dashed #F7F7F7;
}

.learn a {
	font-weight: normal;
	text-decoration: none;
	color: #b83f45;
}

.learn a:hover {
	text-decoration: underline;
	color: #787e7e;
}

.learn h3,
.learn h4,
.learn h5 {
	margin: 10px 0;
	font-weight: 500;
	line-height: 1.2;
	color: #000;
}

.learn h3 {
	font-size: 24px;
}

.learn h4 {
	font-size: 18px;
}

.learn h5 {
	margin-bottom: 0;
	font-size: 14px;
}

.learn ul {
	padding: 0;
	margin: 0 0 30px 25px;
}

.learn li {
	line-height: 20px;
}

.learn p {
	font-size: 15px;
	font-weight: 300;
	line-height: 1.3;
	margin-top: 0;
	margin-bottom: 0;
}

.quote {
	border: none;
	margin: 20px 0 60px 0;
}

.quote p {
	font-style: italic;
}

.quote p:before {
	content: '“';
	font-size: 50px;
	opacity: .15;
	position: absolute;
	top: -20px;
	left: 3px;
}

.quote p:after {
	content: '”';
	font-size: 50px;
	opacity: .15;
	position: absolute;
	bottom: -42px;
	right: 3px;
}

.quote footer {
	position: absolute;
	bottom: -40px;
	right: 0;
}

.quote footer img {
	border-radius: 3px;
}

.quote footer a {
	margin-left: 5px;
	vertical-align: middle;
}

.speech-bubble {
	position: relative;
	padding: 10px;
	background: rgba(0, 0, 0, .04);
	border-radius: 5px;
}

.speech-bubble:after {
	content: '';
	position: absolute;
	top: 100%;
	right: 30px;
	border: 13px solid transparent;
	border-top-color: rgba(0, 0, 0, .04);
}

/**body*/.learn-bar > .learn {
	position: absolute;
	width: 272px;
	top: 8px;
	left: -300px;
	padding: 10px;
	border-radius: 5px;
	background-color: rgba(255, 255, 255, .6);
	transition-property: left;
	transition-duration: 500ms;
}

@media (min-width: 899px) {
	/**body*/.learn-bar {
		width: auto;
		margin: 0 0 0 300px;
	}
	/**body*/.learn-bar > .learn {
		left: 8px;
	}
	/**body*/.learn-bar #todoapp {
		width: 550px;
		margin: 130px auto 40px auto;
	}
}

              
            
!

JS

              
                import {
  domEvents,
  enterEvent,
  fixture,
  ObservableArray,
  ObservableObject,
  realtimeRestModel,
  route,
  StacheElement,
  type
} from "//unpkg.com/can@pre/everything.mjs";

domEvents.addEvent(enterEvent);

class Todo extends ObservableObject {
  static props = {
    id: { type: type.convert(Number), identity: true },
    name: String,
    complete: false
  };
}

class TodoList extends ObservableArray {
	static items = Todo;

  static props = {
    get active() {
      return this.filter({ complete: false });
    },

    get complete() {
      return this.filter({ complete: true });
    },

    get allComplete() {
      return this.length === this.complete.length;
    },

    get saving() {
      return this.filter(function(todo) {
        return todo.isSaving();
      });
    }
  };

  updateCompleteTo(value) {
    this.forEach(function(todo) {
      todo.complete = value;
      todo.save();
    });
  }

  destroyComplete() {
    this.complete.forEach(function(todo) {
      todo.destroy();
    });
  }
}

const todoStore = fixture.store(
  [
    { name: "mow lawn", complete: false, id: 5 },
    { name: "dishes", complete: true, id: 6 },
    { name: "learn canjs", complete: false, id: 7 }
  ],
  Todo
);

fixture("/api/todos", todoStore);
fixture.delay = 200;

realtimeRestModel({
  url: "/api/todos",
  Map: Todo,
  List: TodoList
});

class TodoCreate extends StacheElement {
  static view = `
    <input id="new-todo"
      placeholder="What needs to be done?"
      value:bind="this.todo.name"
      on:enter="this.createTodo()"
    >
  `;

  static props = {
    todo: {
      get default() {
        return new Todo();
      }
    }
  };

  createTodo() {
    this.todo.save().then(() => {
      this.todo = new Todo();
    });
  }
}

customElements.define("todo-create", TodoCreate);

class TodoListElement extends StacheElement {
  static view = `
    <ul id="todo-list">
      {{# for(todo of this.todos) }}
        <li class="todo {{# if(todo.complete) }}completed{{/ if }}
          {{# if(todo.isDestroying()) }}destroying{{/ if }}
          {{# if(this.isEditing(todo)) }}editing{{/ if }}">
          <div class="view">
            <input 
              class="toggle"
              type="checkbox"
              checked:bind="todo.complete"
              on:change="todo.save()"
            >
            <label on:dblclick="this.edit(todo)">{{ todo.name }}</label>
            <button class="destroy" on:click="todo.destroy()"></button>
          </div>
          <input 
            class="edit"
            type="text"
            value:bind="todo.name"
            on:enter="this.updateName()"
            focused:from="this.isEditing(todo)"
            on:blur="this.cancelEdit()"
          >
        </li>
      {{/ for }}
    </ul>
  `;

  static props = {
    todos: type.maybeConvert(TodoList),
    editing: Todo,
    backupName: String
  };

  isEditing(todo) {
    return todo === this.editing;
  }

  edit(todo) {
    this.backupName = todo.name;
    this.editing = todo;
  }

  cancelEdit() {
    if (this.editing) {
      this.editing.name = this.backupName;
    }
    this.editing = null;
  }

  updateName() {
    this.editing.save();
    this.editing = null;
  }
}

customElements.define("todo-list", TodoListElement);

class TodoMVC extends StacheElement {
  static view = `
    <section id="todoapp">
      <header id="header">
        <h1>{{ this.appName }}</h1>
        <todo-create/>
      </header>
      <section id="main">
        <input 
          id="toggle-all" 
          type="checkbox"
          checked:bind="this.allChecked"
          disabled:from="this.todosList.saving.length"
        >
        <label for="toggle-all">Mark all as complete</label>
        <todo-list todos:from="this.todosPromise.value"/>
      </section>
      <footer id="footer">
        <span id="todo-count">
          <strong>{{ this.todosPromise.value.active.length }}</strong> items left
        </span>
        <ul id="filters">
          <li>
            <a href="{{ routeUrl(filter=undefined) }}"
              {{# routeCurrent(filter=undefined) }}class="selected"{{/ routeCurrent }}>All</a>
          </li>
          <li>
            <a href="{{ routeUrl(filter='active') }}"
              {{# routeCurrent(filter='active') }}class="selected"{{/ routeCurrent}}>Active</a>
          </li>
          <li>
            <a href="{{ routeUrl(filter='complete') }}"
              {{# routeCurrent(filter='complete') }}class="selected"{{/ routeCurrent}}>Completed</a>
          </li>
        </ul>
        <button id="clear-completed" on:click="this.todosList.destroyComplete()">
          Clear completed ({{ this.todosPromise.value.complete.length }})
        </button>
      </footer>
    </section>
  `;

  static props = {
    appName: { default: "TodoMVC" },
    routeData: {
      get default() {
        route.register("{filter}");
        route.start();
        return route.data;
      }
    },
    get todosPromise() {
      if (!this.routeData.filter) {
        return Todo.getList({});
      } else {
        return Todo.getList({
          filter: { complete: this.routeData.filter === "complete" }
        });
      }
    },
    todosList: {
      async(resolve) {
        this.todosPromise.then(resolve);
      }
    },
    get allChecked() {
      return this.todosList && this.todosList.allComplete;
    },
    set allChecked(newVal) {
      this.todosList && this.todosList.updateCompleteTo(newVal);
    }
  };
}
customElements.define("todo-mvc", TodoMVC);

              
            
!
999px

Console