@adobe/coral-spectrum/coral-base-overlay/src/styles/index.css

Coral Spectrum is a JavaScript library of Web Components following Spectrum design patterns.

/**
 * Copyright 2019 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
._coral-Underlay {
  visibility: hidden;

  opacity: 0;

  transition: transform 130ms ease-in-out,
              opacity 130ms ease-in-out,
              visibility 0ms linear 130ms;

  pointer-events: none;
}
._coral-Underlay.is-open {
  visibility: visible;

  opacity: 1;

  transition-delay: 0ms;

  pointer-events: auto;
}
._coral-Underlay {

  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;

  overflow: hidden;
  transition: opacity 190ms cubic-bezier(0.5, 0, 1, 1) 160ms,
              visibility 0ms linear 350ms;
}
._coral-Underlay.is-open {
  transition: opacity 300ms cubic-bezier(0, 0, 0.40, 1) 0ms;
}

.coral--large ._coral-Underlay {

  transition: transform 130ms ease-in-out,
              opacity 130ms ease-in-out,
              visibility 0ms linear 130ms;
  transition: opacity 190ms cubic-bezier(0.5, 0, 1, 1) 160ms,
              visibility 0ms linear 350ms;
}
.coral--large ._coral-Underlay.is-open {
  transition: opacity 300ms cubic-bezier(0, 0, 0.40, 1) 0ms;
}

.coral--light ._coral-Underlay,.coral--lightest ._coral-Underlay {
  background: rgba(0,0,0,0.4);
}

.coral--dark ._coral-Underlay {
  background: rgba(0,0,0,0.5);
}

.coral--darkest ._coral-Underlay {
  background: rgba(0,0,0,0.6);
}