button {
  margin: 0 3px 10px 0;
  padding-left: 2px;
  padding-right: 2px;
  /* width: 99px; */
}

button:last-of-type {
  margin: 0;
}

p.borderBelow {
  margin: 0 0 20px 0;
  padding: 0 0 20px 0;
}

video {
  height: 232px;
  margin: 0 12px 20px 0;
  vertical-align: top;
  width: calc(20em - 10px);
}

video:last-of-type {
  margin: 0 0 20px 0;
}

video#gumVideo {
  margin: 0 20px 20px 0;
}

@media (max-width: 500px) {
  button {
    font-size: 0.8em;
    width: calc(33% - 5px);
  }
}

@media (max-width: 720px) {
  video {
    height: calc((50vw - 48px) * 3 / 4);
    margin: 0 10px 10px 0;
    width: calc(50vw - 48px);
  }

  video#gumVideo {
    margin: 0 10px 10px 0;
  }
}
button { width: auto; }
h2 { color: #af2222; }
div, h2, h3, p, table { text-align: center; margin: 0 auto; }
/* #wrapper { max-width: 1024px; } */
.cb { clear: both; }
.dotted { border: 1px dotted grey; }
.fl { float: left; }
.fr { float: right; }
.wauto { width: auto; }
.w100 { width: 100px; }
.w150 { width: 150px; }
.w200 { width: 200px; }
.w300 { width: 300px; }
.w400 { width: 400px; }
.w100p { width: 100%; }
.mw200 { max-width: 200px; }
.mw300 { max-width: 300px; }
.mw360 { max-width: 360px; }
.mw400 { max-width: 400px; }
.mw640 { max-width: 640px; }
.p5 { padding: 5px; }
.p10 { padding: 10px; }
.blue { color: blue; }
.red { color: red; }