html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffffff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.link {
  position: relative;
  isolation: isolate;
  display: inline-block;
  padding: 4px 8px;
  color: #17141a;
  text-decoration: none;
  font-weight: 700;
  font-size: clamp(18px, 5vw, 26px);
  line-height: 1.3;
}
.link::before {
  content: "";
  position: absolute;
  inset: 10% -4% 6%;
  background: #ffd23f;
  border-radius: 4px;
  transform: skewX(-6deg) scaleX(0);
  transform-origin: left center;
  mix-blend-mode: multiply;
  z-index: -1;
  transition: transform 300ms cubic-bezier(0.2, 1.4, 0.4, 1);
}
.link:hover::before, .link:focus-visible::before {
  transform: skewX(-6deg) scaleX(1);
}
.link.is-demo::before {
  animation: marker-hover 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

@keyframes marker-hover {
  0%, 100% {
    transform: skewX(-6deg) scaleX(0);
  }
  35%, 60% {
    transform: skewX(-6deg) scaleX(1);
  }
}
@media (prefers-reduced-motion: reduce) {
  .link::before, .link.is-demo::before {
    transition: none;
    animation: none;
  }
  .link:hover::before, .link:focus-visible::before {
    transform: skewX(-6deg) scaleX(1);
  }
}