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              <div class="slider">
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
  <div class="item"></div>
</div>
            
          
!
            
              $size: 200px;
$gutter: 20px;

html, body {
  height: 100%;
}

body {
  display: flex;
  overflow: hidden;
  counter-reset: count;
}

.slider {
  width: 100%;
  margin: auto;
  display: flex; // Force items to fit horizontally, don't wrap
  overflow-x: auto; // Let user slide if items can't fit
  overflow-y: hidden; // Avoid scrollbar on IE
  -webkit-overflow-scrolling: touch;
  padding: $gutter/2;
  height: $size;
  background-color: GhostWhite;
  
  &:before,
  &:after {
    content: '';
    flex: 1 0 auto; // Trick to fake center alignment when the screen is large enough
    display: inline-block; // Force IE to set flex on IE 10
  }
  
  &:after {
    width: 10px; // Fix flexbox bug, .slider's right padding not taken into account
  }
}

.item {
  display: inline-block; // Force IE to set flex on IE 10
  width: $size;
  margin: $gutter/2;
  counter-increment: count;
  flex: 0 0 auto; // Items can't shrink or grow automatically
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: LightSteelBlue;
  
  &:before {
    content: counter(count);
    font-size: 2em;
    font-weight: bold;
    opacity: .25;
  }
}
            
          
!
999px
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