* {
  box-sizing:border-box
}
       
img {
  width:100%;
  display:block;
}

.container {
  width:50%;
  display:block;
  margin:30px auto
}

#before-after-slider {
  width:100%;
  position:relative;
  overflow:hidden;
  border:3px solid white;
}

#after-image {
  display:block
}

#before-image {
  position:absolute;
  height:100%;
  width:50%;
  top:0;
  left:0;
  overflow:hidden;
  z-index:2;
}

#resizer {
  position:absolute;
  display:flex;
  align-items:center;
  z-index:5;
  top:0;
  left:50%;
  height:100%;
  width:3px;
  background: #0176CE;
  -ms-touch-action: pan-y;
   touch-action: pan-y;
}

#resizer {
  position:absolute;
  display:flex;
  align-items:center;
  z-index:5;
  top:0;
  left:50%;
  height:100%;
  width:3px;
  background: #0176CE;
  -ms-touch-action: pan-y;
   touch-action: pan-y;
}

#resizer:after {
  background: #0176CE;
  content: "\276E      \276F"; 
  font-size: 1.2rem;
  font-weight: 900;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  position: absolute;
  margin: 0 0 0 -22px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid #0176CE;
}



.label-before,
.label-after {
  position: absolute;
  top: 10px;
  background: #EFEFEF;
  color: #000;
  font-weight: bold;
  padding: 5px 13px;
  font-size: 1.2rem;
  border-radius: 5px;
  z-index: 20;
}
.label-before {
  left: 10px;
}
.label-after {
  right: 10px;
}
@media (max-width:767px) {
  .container {
    width:100%;
    padding:0 20px
  }
}