chromium/ash/webui/camera_app_ui/resources/css/inkdrop.css

/* Copyright 2021 The Chromium Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file. */

.inkdrop {
  overflow: hidden;
}

.inkdrop .inkdrop-ripple {
  background: var(--cros-sys-ripple_primary);
  border-radius: 50%;
  height: 0;
  left: var(--drop-x);
  position: absolute;
  top: var(--drop-y);
  transform: translate(-50%, -50%);
  width: 0;
}

.inkdrop .inkdrop-ripple.animate {
  animation: inkdrop var(--moderate1-duration) ease-out;
}

@keyframes inkdrop {
  0% {
    height: 0;
    opacity: 0.6;
    width: 0;
  }
  100% {
    height: calc(var(--drop-radius) * 2);
    opacity: 0;
    width: calc(var(--drop-radius) * 2);
  }
}