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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.

            
              <div id="page">
<div class="wrapper">
  <div class="before">
    <img class="content-image" src="https://farm2.staticflickr.com/1638/26145024230_06acd55d1b_b.jpg" draggable="false"/>   </div>
  <div class="after">
    <img class="content-image" src="https://farm2.staticflickr.com/1663/25814974803_d4c55ff708_b.jpg" draggable="false"/>
  </div>
  <div class="scroller">
    <svg class="scroller__thumb" xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><polygon points="0 50 37 68 37 32 0 50" style="fill:#fff"/><polygon points="100 50 64 32 64 68 100 50" style="fill:#fff"/></svg>
  </div>
</div>
</div>
            
          
!
            
              /* You can remove this page div in your website */
#page{
  width:100%;
  height:100%;
  position:absolute;
}

/* Our normalize css */
*{
  margin:0;
  box-sizing: border-box;
}

/* Our wrapper */
.wrapper{
  width: 900px;
  height: 600px;
  position: absolute;
  left:50%;
  top:50%;
  transform:translate3d(-50%,-50%,0);
  overflow:hidden;
  box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
}

/* Our image information */
.before,
.after {
  width:100%;
  height:100%;
  background-repeat:no-repeat;
  background-color: white;
  background-size: cover;
  background-position: center;
  position: absolute;
  top:0;
  left:0;
  pointer-events:none;
  overflow: hidden;
}

.content-image{
  height:100%;
}

.after{
  width:125px;
}

.scroller{
  width: 50px;
  height:50px;
  position: absolute;
  left:100px;
  top:50%;
  transform:translateY(-50%);
  border-radius:50%;
  background-color: transparent;
  opacity:0.9;
  pointer-events:auto;
  cursor: pointer;
}

.scroller:hover{
  opacity:1;
}

.scrolling{
  pointer-events:none;
  opacity:1;
  // z-index: 1;
}

.scroller__thumb{
  width:100%;
  height:100%;
  padding:5px;
}

.scroller:before,
.scroller:after{
  content:" ";
  display: block;
  width: 7px;
  height: 9999px;
  position: absolute;
  left: 50%;
  margin-left: -3.5px;
  z-index: 30;
  transition:0.1s;
}
.scroller:before{
  top:100%;
}
.scroller:after{
  bottom:100%;
}

/* If you want to cahnge the colors, make sure you change the fill in the svgs to match */
.scroller{
  border: 5px solid #fff;
}
.scroller:before,
.scroller:after{
  background: #fff;
}
            
          
!
            
              // I hope this over-commenting helps. Let's do this!
// Let's use the 'active' variable to let us know when we're using it
let active = false;

// First we'll have to set up our event listeners
// We want to watch for clicks on our scroller
document.querySelector('.scroller').addEventListener('mousedown',function(){
  active = true;
  // Add our scrolling class so the scroller has full opacity while active
  document.querySelector('.scroller').classList.add('scrolling');
});
// We also want to watch the body for changes to the state,
// like moving around and releasing the click
// so let's set up our event listeners
document.body.addEventListener('mouseup',function(){
  active = false;
  document.querySelector('.scroller').classList.remove('scrolling');
});
document.body.addEventListener('mouseleave',function(){
  active = false;
  document.querySelector('.scroller').classList.remove('scrolling');
});

// Let's figure out where their mouse is at
document.body.addEventListener('mousemove',function(e){
  if (!active) return;
  // Their mouse is here...
  let x = e.pageX;
  // but we want it relative to our wrapper
  x -= document.querySelector('.wrapper').getBoundingClientRect().left;
  // Okay let's change our state
  scrollIt(x);
});

// Let's use this function
function scrollIt(x){
    let transform = Math.max(0,(Math.min(x,document.querySelector('.wrapper').offsetWidth)));
    document.querySelector('.after').style.width = transform+"px";
    document.querySelector('.scroller').style.left = transform-25+"px";
}

// Let's set our opening state based off the width, 
// we want to show a bit of both images so the user can see what's going on
scrollIt(150);

// And finally let's repeat the process for touch events
// first our middle scroller...
document.querySelector('.scroller').addEventListener('touchstart',function(){
  active = true;
  document.querySelector('.scroller').classList.add('scrolling');
});
document.body.addEventListener('touchend',function(){
  active = false;
  document.querySelector('.scroller').classList.remove('scrolling');
});
document.body.addEventListener('touchcancel',function(){
  active = false;
  document.querySelector('.scroller').classList.remove('scrolling');
});
            
          
!
999px
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