html {
  font-family: 'Poppins', sans-serif;
  color: white;
  text-transform: uppercase;
  font-weight: bold;
  text-shadow: 2px 4px 3px rgba(0,0,0,0.3);
  margin: 0px;
  line-height: 2em;
}

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

.slider {
  position: relative;
  height: 0px;
  margin-top: 24px;
  margin-bottom: 24px;
}

.imgA {
  width: 100%;
  padding-bottom: 66.666666667%;
}

.imgB {
  width: 50%;
  padding-bottom: 89%;
}

.slider_after_16-9, .slider_after_9-16 {
  position: absolute;
  top: 0px;
  left: 0px;
  z-index: 1;
  width: 100%;
  height: 100%;
  background-size: cover;
  pointer-events: none;
}

.slider_before_16-9, .slider_before_9-16 {
  position: absolute;
  top: 0px;
  left: 0px;
  z-index: 2;
  width: 50%;
  height: 100%;
  background-size: cover;
  pointer-events: none;
  overflow: hidden;
}

.slider_before_16-9:before, .slider_before_9-16:before {
  content: 'Avant';
  position: absolute;
  left: 8px;
}

.slider_after_16-9:before, .slider_after_9-16:before {
  content: 'Après';
  position: absolute;
  right: 8px;
}

.slider_separator_16-9, .slider_separator_9-16 {
  position: absolute;
  left: 50%;
  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: 3;
  transform: translateX(-50%);
}

.slider_range_16-9, .slider_range_9-16 {
  position: absolute;
  width: 100%;
  bottom: 0px;
  z-index: 3;
  appearance: none;
  background: rgba(255,255,255,0.3);
  outline: none;
  margin: 0px;
}

.slider_range_16-9::-webkit-slider-thumb, .slider_range_9-16::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 16px;
  background: white;
}

.slider_range_16-9::-moz-slider-thumb, .slider_range_9-16::-moz-slider-thumb {
  -moz-appearance: none;
  width: 12px;
  height: 16px;
  background: white;
}

.slider .slider_separator_16-9:before, .slider .slider_separator_9-16:before {
  content: '';
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: solid 2px white;
  background-color: white;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.slider .slider_separator_16-9 i, .slider .slider_separator_9-16 i {
  position: absolute;
  top: calc(50% - 8px);
}

.slider .slider_separator_16-9 i.fa-chevron-left, .slider .slider_separator_9-16 i.fa-chevron-left {
  left: -11px;
}

.slider .slider_separator_16-9 i.fa-chevron-right, .slider .slider_separator_9-16 i.fa-chevron-right {
  left: 2px;
}

.slider input.slider_range_16-9, .slider input.slider_range_9-16 {
  display: none;
}

.slider .slider_before_16-9:before, 
.slider .slider_after_16-9:before, 
.slider .slider_before_9-16:before, 
.slider .slider_after_9-16:before  {
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,0,0,0.5);
  padding: 4px 8px;
  border-radius: 8px;
  margin-left: 8px;
  margin-right: 8px;
}

#imgA1{
  background-image: url('images/before1.jpg');
}

#imgA2{
  background-image: url('images/after1.jpg');
}

#imgB1{
  background-image: url('images/before2.jpg');
}

#imgB2{
  background-image: url('images/after2.jpg');
}