html, body {
  margin: 0;
  padding: 0;
  font-family: "Roboto", Arial, sans-serif;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
p {
  font-size: 0.9rem;
  line-height: 1.4rem;
}

h1, h2, h3, p {
  margin: 1rem;
}

p.caption {
  font-size: 0.7rem;
  margin-bottom: 0;
  margin-top: 0;
}

iframe {
  display: block;
  border: none;
  margin: 10px auto;
  margin-bottom: 0;
  padding: 0;
  border: 0;
}

#controls {
  overflow: hidden;
  background: #eee;
  margin: 0 auto;
}

  #controls > * {
    margin: 8px;
    cursor: pointer;
    opacity: 0.5;
  }
 
  #controls > *:hover {
    opacity: 1;
  }


#toggleplay {
  float: left;
  background: url('img/ic_pause_black_24dp.svg');
  width: 24px;
  height: 24px;
}

  #toggleplay.paused {
    background: url('img/ic_play_arrow_black_24dp.svg');
  }

#togglemute {
  float: right;
  background: url('img/ic_volume_up_black_24dp.svg');
  width: 24px;
  height: 24px;
}

  #togglemute.muted {
    background: url('img/ic_volume_off_black_24dp.svg');
  }

/* MOBILE */
@media screen and (max-width: 700px) {
  iframe {
    width: 100%;
    height: 240px;
  }
}
/* DESKTOP */
@media screen and (min-width: 700px) {
  iframe {
    height: 400px;
    width: 700px;
  }

  h1, h2, p {
    width: 700px;
    margin: 1rem auto;
  }

  #controls {
    width: 700px;
  }
}