amp-ad.css

/**
 * Copyright 2016 The AMP HTML Authors. All Rights Reserved.
 *
 * Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Force the layout box of the ad iframe to be exactly as big as the actual
 * iframe. The `amp-ad` tag itself can be freely styled.
 */
amp-ad iframe {
  border: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
}

.-amp-ad-default-holder {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(200, 200, 200, 0.5);
}

.-amp-ad-default-holder:after {
  content: "Ad";
  background-color: rgba(0, 0, 0, 0.5);
  border-radius: 2px;
  color: #fff;
  font-size: 16px;
  line-height: 16px;
  font-family: Arial, sans-serif;
  padding: 2px 4px;
}