bootstrap-css/lib/responsive-embed.css

A css module compatible version of bootstrap

/*!
 * Bootstrap v4.0.0-alpha.6 (http://getbootstrap.com)
 * Copyright (c) 2011-2017 Twitter, Inc.
 * Copyright (c) 2011-2017 The Bootstrap Authors
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */
.embed-responsive {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden; }

.embed-responsive::before {
  display: block;
  content: ""; }

.embed-responsive .embed-responsive-item,
.embed-responsive iframe,
.embed-responsive embed,
.embed-responsive object,
.embed-responsive video {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0; }

.embed-responsive-21by9::before {
  padding-top: 42.85714%; }

.embed-responsive-16by9::before {
  padding-top: 56.25%; }

.embed-responsive-4by3::before {
  padding-top: 75%; }

.embed-responsive-1by1::before {
  padding-top: 100%; }