@smui/line-ripple/bare.css

Svelte Material UI - Line Ripple

.mdc-line-ripple::before, .mdc-line-ripple::after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  border-bottom-style: solid;
  content: "";
}
.mdc-line-ripple::before {
  border-bottom-width: 1px;
}
.mdc-line-ripple::before {
  z-index: 1;
}
.mdc-line-ripple::after {
  transform: scaleX(0);
  border-bottom-width: 2px;
  opacity: 0;
  z-index: 2;
}
.mdc-line-ripple::after {
  transition: transform 180ms cubic-bezier(0.4, 0, 0.2, 1), opacity 180ms cubic-bezier(0.4, 0, 0.2, 1);
}

.mdc-line-ripple--active::after {
  transform: scaleX(1);
  opacity: 1;
}

.mdc-line-ripple--deactivating::after {
  opacity: 0;
}