JSFiddle - React, Tailwind, and code Playground

HTML

<div class="viewport-clip">
  <div class="viewport">
    <div class="horizontal">
      <div class="item"></div>
      <div class="item"></div>
      <div class="item"></div>
      <div class="item"></div>
    </div>
  </div>
</div>

CSS

/*
::-webkit-scrollbar { 
  display: none; 
}
*/

.viewport-clip {
  width: 100px;
  height: 100px;
  overflow: hidden;
}

.viewport {
  width: 100px;
  height: 130px; /* Note the excessive extra height to keep h-scrollbar at bay */
  overflow: auto;
  overflow-x: auto;
  overflow-y: hidden;
}

.horizontal {
  width: 404px;
  height: 130px;
}

.item {
  width: 100px;
  float: left;
  background: blue;
  margin-right: 1px;
  height: 100px;
}