src/cobalt/loader/embedded_resources/dialog.js

// Copyright 2018 The Cobalt 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.

function onResize() {
  var defaultHeight = 720;
  var percent = document.body.offsetHeight / defaultHeight;
  document.body.style.fontSize = 25 * percent + 'px';
}

function onLoad() {
  onResize();
}

window.addEventListener('resize', onResize);
document.addEventListener('DOMContentLoaded', onLoad);