html {
  font-family: 'Poppins', sans-serif;
  color:white;
  text-transform: uppercase;
  font-weight: bold;
  margin:0px;
}

.container {
  width:1024px;
  max-width:100%;
  margin:0 auto;
}

.slider {
  position:relative;
  height:0px;
  padding-bottom:66.666666667%;  /* replace with the ratio of your pictures*/
  margin-top:24px;
  margin-bottom:24px;
}

.slider__before {
  position:absolute;
  top:0px;
  left:0px;
  z-index:3;
  width:33.3333%;
  height:100%;
  background-size:cover;
  background-image: url('images/AVANT.jpg'); /*replace with the link of your first picture (before)*/
  pointer-events: none;
  overflow:hidden;
}

.slider__after {
  position:absolute;
  top:0px;
  left:0px;
  z-index:1;
  width:100%;
  height:100%;
  background-size:cover;
  background-image: url('images/APRES.jpg'); /*replace with the link of your third picture (after)*/
  pointer-events: none;
}

.slider__before:before {
  content:'A sec';
  position:absolute;
  left:16.666%;
  top:8px;
}


.slider__after:before {
  content:'Q100';
  position:absolute; 
  right:15%;
  top:8px;
}

.slider__separator1 {
  position:absolute;
  left:33.3333%;
  width:2px;
  top:0px;
  bottom:0px;
  background:rgba(255,255,255,0.7);
  box-shadow: 0 5px 10px 0px rgba(0,0,0,0.5);
  cursor:ew-resize;
  z-index:4;
  transform:translateX(-33%);
}

.slider__range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width:12px;
  height:16px;
  background:white;
}

.slider__range::-moz-slider-thumb {
  -moz-appearance: none;
  width:12px;
  height:16px;
  background:white;
}

.slider__separator1:before{
  content:'';
  width:32px;
  height:32px;
  border-radius:50%;
  border:solid 2px white;
  position:absolute;
  top:33%;
  left:50%;
  transform:translate(-50%, -50%);
}

.slider__range1,
.slider__range2 {
  display:none;
  position:absolute;
  width:100%;
  bottom:0px;
  z-index: 4;
  appearance: none;
  background:rgba(255,255,255,0.3);
  outline:none;
  margin:0px;
}

.slider__before:before, 
.slider__while:before, 
.slider__after:before {
  top:10%;
  transform:translateY(-0%);
  padding:8px 16px;
  margin-left:8px;
  margin-right:8px;
}