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HTML 

              
                <html>
<head>
  <link rel="stylesheet" href="style.css">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta charset="utf-8">
</head>

<body>
  <svg style="background-color:#aaa;" width="0" height="0">
    <defs>
      <path id="scrollArrow" d="M -20,0 L 20 -50, 10 0, 20 50 Z"/>
    </defs>
<!--
    <g transform="translate(60,60)">
      <use xlink:href="#scrollArrow" />
      <circle cx="0" cy="0" r="4" fill="red"/>
    </g>
    <rect width="100" height="100" x="10" y="10" stroke="#fff" fill="none" stroke-width="2"/> -->
  </svg>

  <div id="widthControlled" class="gallery-row small">
    <svg id="leftArrow" class="arrow left" viewBox="0 0 100 100">
      <use xlink:href="#scrollArrow" style="fill:white" transform="translate(50,50)"/>
    </svg>
    <div id="scroller" class="gallery-row-scroll">
      <article>
        <img src="https://d.gr-assets.com/books/1348264535l/4386485.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1388367666l/930.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1467790220l/29965826.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1339838809l/2945832.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1327878225l/4948.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1408927741l/577348.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1456594041l/27065769.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1444691426l/26876264.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1469370640l/27206512.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1445789260l/27209283.jpg">
      </article>
      <article>
        <img src="https://d.gr-assets.com/books/1467551763l/27206458.jpg">
      </article>
    </div>

    <svg id="rightArrow" class="arrow right" viewBox="0 0 100 100">
      <use xlink:href="#scrollArrow" style="fill:white" transform="translate(50,50) rotate(180)"/>
    </svg>
  </div>



<br><br><br><br><br>

<input id="widthController" type="range" min="1" max="900">
<label>&#8592; For debugging responsiveness</label>

</body>
</html>
!

CSS 

              
                .gallery-row{
  display:flex;
  display:-webkit-flex;
  flex-flow:row nowrap;
}

.gallery-row-scroll{
  display:flex;
  display:-webkit-flex;
  overflow-x:scroll;
  -webkit-overflow-scrolling: touch;
  -ms-flex-flow: row nowrap;
  flex-flow: row nowrap;
  -webkit-flex-flow: row nowrap;

}

.gallery-row-scroll > *{
  margin: 0 0.1em;
  -webkit-flex:0 0 auto;
}

.gallery-row-scroll > :first-child{
  margin-left: 0;
}

.gallery-row-scroll > :last-child{
  margin-right: 0;
}

.gallery-row img{
  display:block;
  -webkit-touch-callout: none; /* iOS Safari */
  -webkit-user-select: none;   /* Chrome/Safari/Opera */
  -khtml-user-select: none;    /* Konqueror */
  -moz-user-select: none;      /* Firefox */
  -ms-user-select: none;       /* Internet Explorer/Edge */
  user-select: none;
}
/*
html.touchevents .gallery-row svg{
  display:none;
}
*/

.gallery-row svg{
  background-color:rgba(0,0,0,0.5);
  width:10%;
  max-width:50px;
  min-width:20px;
  opacity:0.75;
  cursor:pointer;
}

.gallery-row svg:hover{
  background-color:rgba(0,0,0,0.75);
  opacity:1;
cursor:pointer;
}

.gallery-row .arrow.right{
  right:0;
}

.gallery-row.large img{
  height:200px;
  width:auto;
}

.gallery-row.small img{
  height:150px;
  width:auto;
}
!

JS 

              
                

var scroller = document.querySelector('.gallery-row-scroll');
var leftArrow = document.getElementById('leftArrow');

var direction = 0;
var active = false;
var max = 10;
var Vx = 0;
var x = 0.0;
var prevTime = 0;
var f = 0.2;
var prevScroll = 0;

function physics(time) {
  // Measure how much time has passed
  var diffTime = time - prevTime;
  if (!active) {
    diffTime = 80;
    active = true;
  }
  prevTime = time;

  // Give power to the scrolling

  console.log(diffTime);

  Vx = (direction * max * f + Vx * (1-f)) * (diffTime / 20);

  x += Vx;
  var thisScroll = scroller.scrollLeft;
  var nextScroll = Math.floor(thisScroll + Vx);

  if (Math.abs(Vx) > 0.5 && nextScroll !== prevScroll) {
    scroller.scrollLeft = nextScroll;
    requestAnimationFrame(physics);
  } else {
    Vx = 0;
    active = false;
  }
  prevScroll = nextScroll;
}

leftArrow.addEventListener('mousedown', function () {
  direction = -1;
  if (!active) {
    requestAnimationFrame(physics);
  }
});

leftArrow.addEventListener('mouseup', function () {
  direction = 0;
});

rightArrow.addEventListener('mousedown', function () {
  direction = 1;
  if (!active) {
    requestAnimationFrame(physics);
  }
});
rightArrow.addEventListener('mouseup', function(event){
  direction = 0;
});

// controller stuff
var widthControlled = document.getElementById('widthControlled');
var widthController = document.getElementById('widthController');
widthController.addEventListener('input', function (event) {
  widthControlled.style.width = this.value;
});
!
999px

Console