<main>
  <h1>overflow: auto</h1>
  <p class="top">The dark side of the force is a pathway to many abilities some consider to be unnatural.</p>

  <h1>overflow: hidden</h1>
  <p class="bottom">The dark side of the force is a pathway to many abilities some consider to be unnatural.</p>
</main>

body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  margin: 0;
  color: #fff;
  background-image: linear-gradient(20deg, #4dccc6, #ffc857);
  font: 1.5rem/1.333 'Oxygen Mono', monospace;
  overflow-x: hidden;
}

@media (max-width: 500px) {
  body {
    font-size: 1.125rem;
  }
}

main {
  position: relative;
  margin: 15px 10px;
}

main::after {
  content: '';
  display: block;
  position: absolute;
  top: 16px;
  left: calc(28ch + 9px);
  bottom: 0;
  border-left: 2px dashed #fff6;
}

h1 {
  position: relative;
  z-index: 2;
  width: min-content;
  margin: 0 10px;
  padding: 5px 10px;
  border-radius: 4px;
  background-color: #000;
  font-weight: normal;
  font-size: 0.667em;
  white-space: nowrap;
  transform: translateY(50%);
}

p {
  width: 28ch;
  margin: 0 0 15px;
  padding: 20px 10px 10px;
  border-radius: 4px;
  background-color: #0006;
}

.top {
  white-space: nowrap;
  overflow: auto;
}

.bottom {
  white-space: nowrap;
  overflow: hidden;
}