JSFiddle - React, Tailwind, and code Playground

HTML

<div class="rows">
  <div class="row">
    <div class="item"></div>
  </div>
  <div class="row">
    <div class="item"></div>
    <div class="item"></div>
  </div>
  <div class="row">
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
  </div>
  <div class="row">
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
    <div class="item"></div>
  </div>
</div>

CSS

.rows {
  width: min-content;
  overflow-x: auto;
}

.row {
  display: flex;
  justify-content: center;
  background: silver;
  margin: auto;
  outline: 1px solid black;
  gap: 20px;
  padding: 20px;
}

.item {
  width: 300px;
  min-width: 300px;
  height: 100px;
  background-color: royalblue;
}

.item:first-child {
  background: green;
}

/* Tooltip - just for fun... this can be deleted */
.rows::after {
  display: block;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0.5));
  padding: 20px 30px;
  border-radius: 10px;
  font-family: sans-serif;
  position: fixed;
  top: 15px;
  left: 15px;
  content: "← Scroll Horizontally →";
  z-index: 9;
}