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                <div class="container">
<section class="clear">
			<header class="list-header">
				<div class="circles">
				<h1>Things To Do</h1>

				<div class="menu">
			<ul class="task-list">
				<li class="task">
					Click and drag this item right to mark it as complete
				<li class="task">
					Drag left to delete an item
				<li class="task">
					Don't edit anything in the HTML or CSS
				<li class="task">
					Try to use only JavaScript, no third-party libraries
  <p><a href="">See Demo</a> | <a href="">Read the Blog Post</a> | <a href="">My Solution</a> (no peaking!)</p>



                /* RESETTING */

html { box-sizing: border-box; font-size: 62.5%;  }
*, *:before, *:after { box-sizing: inherit; }
body { font-size: 1.6rem; font-weight: 300; line-height: 1.6; font-family: 'Open Sans', sans-serif; }
h1 { font-size: 2rem; }
a { color: inherit; }

/* LAYOUT */

.container { width: 90%; max-width: 500px; margin: 100px auto; }

.clear { margin: 30px 0; }

.list-header { display: flex; align-items: center; background-color: #e0dee0; border-top-left-radius: 5px; border-top-right-radius: 5px; padding: 10px 20px; }

.list-header div { width: 20%; }

.list-header .circles div { height: 15px; width: 15px; border-radius: 50%; display: inline-block; margin-right: 5px; }

.list-header .circles div:nth-child(1) { background-color: #fc615d; }

.list-header .circles div:nth-child(2) { background-color: #fec342; }

.list-header .circles div:nth-child(3) { background-color: #34c749; }

.list-header .menu { display: flex; align-items: flex-end; flex-direction: column; }

.list-header .menu div { width: 25px; height: 3px; background-color: #a9a9a9; border-radius: 3px; }

.list-header .menu div:nth-child(2) { margin: 4px 0; }

.list-header h1 { width: 60%; text-align: center; }

/* Task List */
.task-list { background-color: #272822; min-height: 400px; overflow: hidden; }

/* Individual Task */
.task { color: #fff; width: 100%; height: auto; min-height: 50px; line-height: 2; position: relative; padding: 8px 20px; height: auto; transition: background-color 1s; 

    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;

.task:before, .task:after { position: absolute; top: 0; width: 40px; height: 50px; line-height: 50px; text-align: center; }

.task:before { content: "\2714"; left: -40px; }

.task:after { content: "\2718"; right: -40px; }

.task:not(.completed):not(.completing) { border-bottom: 2px solid #d44a29; }

.task:nth-child(1) { background-color: #e3252c; }

.task:nth-child(2) { background-color: #dc342a; }

.task:nth-child(3) { background-color: #e7522e; }

.task:nth-child(4) { background-color: #e86d2f; }

.task:nth-child(5) { background-color: #e86d2f; }

.task.completing { text-decoration: line-through; background-color: green; }

.task.completed { opacity: 0.5; text-decoration: line-through; background-color: #323232; }

.task.completed:before { content: ""; }

.task.deleting { background-color: #323232; }




		- Each task list item has a class of .task
		- When the task is being swiped right, try adding the class of .completing
		- When the task is being swiped left, try adding the class of .deleting
		- A completed task should have a class of .completed
    - The check and crosses are added as :before and :after pseudo-elements of the .task li so you don't need to add them
      GOOD LUCK!


  Note: classList doesn't work great in IE without a shim, but as 
  this was intended as a fun exercise I'm omitting it :)

  var list = document.getElementsByClassName('task-list')[0];
  var tasks = document.getElementsByClassName('task');
  var mouseOrigin;
  var isSwiping = false;
  var mouseRelease;
  var currentTask;
  var swipeMargin=20;
  var originalClassList;, function addSwipe(element){
    element.addEventListener('mousedown', startSwipe); 
    Defined events on document so that a drag or release outside of target 
    could be handled easily 
  document.addEventListener('mouseup', endSwipe);
  document.addEventListener('mousemove', detectMouse);
  function startSwipe(evt){ 
    mouseOrigin = evt.screenX;
    currentTask =;
    isSwiping = true;
    originalClassList =;
  function endSwipe(evt){
    var completedTask;    
    if( currentTask.classList.contains("completing") ){
    else if( currentTask.classList.contains("deleting") ){
    mouseOrigin = null;
    isSwiping = false; = 0;
    currentTask = null;
  function detectMouse(evt){
    var currentMousePosition = evt.screenX;
    var swipeDifference = Math.abs(mouseOrigin - currentMousePosition)
    if(isSwiping && currentTask && (swipeDifference > swipeMargin) ){ 
      if( (swipeDifference-swipeMargin) <= swipeMargin ){
        //no change, allows user to take no action
        currentTask.classList.remove("deleting"); = 0;
      else if( mouseOrigin > currentMousePosition ){
        //swipe left        
        currentTask.classList.add("deleting"); = -swipeDifference+"px";
      else if( (mouseOrigin < currentMousePosition) &&
                !currentTask.classList.contains("completed") ){
        //swip right");
        currentTask.classList.add("completing"); = swipeDifference+"px";