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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

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

				<div class="menu">
					<div></div>
					<div></div>
					<div></div>
				</div>
			</header>
				
			<ul class="task-list">
				<li class="task">
					Click and drag this item right to mark it as complete
				</li>
				<li class="task">
					Drag left to delete an item
				</li>
				<li class="task">
					Don't edit anything in the HTML or CSS
				</li>
				<li class="task">
					Try to use only JavaScript, no third-party libraries
				</li>
			</ul>
		</section>
  
  <br>
  
  <p><a href="https://gallery.mailchimp.com/282459d63a019df7bb8ca2e92/images/800d93e4-bfd6-4749-8dd0-f2c4fb784c17.gif">See Demo</a></p>

	</div>
            
          
!

CSS

            
              /* 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 ELEMENT */
.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; }

.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; }

            
          
!

JS

            
              /*

  THINGS TO NOTE
		- 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!

*/


var tasks = document.getElementsByClassName("task");


/* ***************

	HELPER FUNCTIONS

*************** */

/* FUNCTION TO GET CURRENT MARGIN OF ELEMENT 
   (ALSO CONVERT TO % MARGIN IF IN PIXELS) */
function getCurrentMargin(element) {

	var currentMargin = element.style.marginLeft;

	if ( currentMargin.indexOf("px") > -1 ) {
		// Convert px margin to percentage 
		currentMargin = currentMargin.split("px")[0];
		var marginInPercentage = ( currentMargin / element.offsetWidth ) * 100;
		currentMargin = marginInPercentage;

	} else if ( currentMargin.indexOf("%") > -1 ) {
		currentMargin = currentMargin.split("%")[0];

	} else {
		currentMargin = 0;
	}

	return parseInt(currentMargin);
}



/* FUNCTION TO HANDLE SWIPING OF LIST ELEMENTS  */
function swipeElement(elementID, swipingRight, swipingIn) {

	var element = document.getElementById(elementID);

	// Swiping an element out - marking as completed or done
	function swipeElementOut() {
		var currentMargin = getCurrentMargin(element),
			currentMargin = swipingRight ? currentMargin += 1 : currentMargin -= 1;
	
		element.style.marginLeft = currentMargin + '%';

		if ( currentMargin == 100 | currentMargin == -100 ) {
			
			clearInterval(interval);

			// Either append completed item to bottom or delete item
			swipingRight ? appendCompletedItem(element) : element.remove();
		}
	}

	// Swiping an element in - appending completed item to list
	function swipeElementIn() {
		var currentMargin = getCurrentMargin(element);
			currentMargin -= 1;

		element.style.marginLeft = currentMargin + '%';

		if ( currentMargin == 0 ) { clearInterval(interval); }
	}

	var interval = swipingIn ? setInterval(swipeElementIn, 5) : setInterval(swipeElementOut, 5);
}


/* FUNCTION TO HANDLE ADDING COMPLETED ITEM TO BOTTOM OF LIST */
function appendCompletedItem(element) {
	element.classList.remove('completing');
	element.classList.add('completed');

	document.getElementsByClassName("task-list")[0].appendChild(element);

	swipeElement(element.id , false, true);
}




/* ***************

	EVENT LISTENER HANDLERS

*************** */

/* HANDLE WHEN MOUSE MOVES */
var handleMouseMove = function(event) {

	if ( cursorXPosition === 0 ) { cursorXPosition = event.x; }

	// Set the margin-left of the list item to move with the mouse
	cursorXPositionDiff = event.x - cursorXPosition;
	event.target.style.marginLeft = cursorXPositionDiff + 'px';

	var taskIsNotCompleted = !(event.target.className.indexOf("completed") > -1);

	// ADD CLASS IF THE cursorXPositionDiff GETS TO A CERTAIN AMOUNT
	if ( cursorXPositionDiff > 40 && taskIsNotCompleted ) {
		event.target.classList.add('completing');

	} else if ( cursorXPositionDiff < -40 ) {
		event.target.classList.add('deleting');

	} else {
		event.target.classList.remove('completing');
		event.target.classList.remove('deleting');
	} 
}


/* HANDLE WHEN MOUSE IS RELEASED */
var handleMouseUp = function(event) {

	var className = event.target.className;

	if ( className.indexOf('completing') > -1 ) {
		// SWIPE AWAY CURRENT LIST ITEM (RIGHT)
		swipeElement(event.target.id, true);

	} else if ( className.indexOf('deleting') > -1 ) {
		// SWIPE AWAY CURRENT LIST ITEM (LEFT)
		swipeElement(event.target.id, false);

	} else {
		// REPOSITION LIST ITEM BACK TO NORMAL POSITION
		event.target.style.marginLeft = "";
	}

	this.removeEventListener("mousemove", handleMouseMove, false);
	addMouseDownEventListener();
}




/* ***************

	ADD EVENT LISTENERS

*************** */

function addMouseDownEventListener() {

	// Reset values to use in handleMouseMove()
	cursorXPosition = 0;
	cursorXPositionDiff = 0;

	// Loop through all tasks and add the event listener to each
	for ( var i = 0; i < tasks.length; i++ ) {
		tasks[i].addEventListener("mousedown", function(event) {
			this.addEventListener("mousemove", handleMouseMove, false);
			this.addEventListener("mouseup", handleMouseUp, false);
		})
	}

}



/* ***************

	INIT

*************** */

var cursorXPosition = 0;
var cursorXPositionDiff = 0;

// Add IDs to all Task Items
for ( var i = 0; i < tasks.length; i++ ) {
	tasks[i].id = "task_" + i;
}

addMouseDownEventListener();


            
          
!
999px

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