.code-two-columns
{
  display: flex;
}

.code-two-columns pre,
.code-two-columns div
{
  flex: 1 1 auto;
}

.reveal h2,
.reveal ul li
{
  font-size: 0.9em;
}

.reveal h3
{
  font-size: 0.8em;
  text-align: center;
}

.reveal h4
{
  font-size: 0.7em;
  text-align: center;
}

.reveal .left
{
  text-align: left;
}

.reveal .right
{
  text-align: right;
}

.reveal pre.size-S code {
  font-size: 22px;
  line-height: 28px;

  padding: 0 13px;
}

.reveal pre.size-XS code {
  font-size: 20px;
  line-height: 26px;

  padding: 0 13px;
}

.reveal pre.size-XXS code {
  font-size: 18px;
  line-height: 24px;

  padding: 0 13px;
}

.reveal p.size-S {
  font-size: 26px;
  line-height: 32px;
}

.reveal p.size-XS {
  font-size: 24px;
  line-height: 30px;
}

.reveal p.size-XXS {
  font-size: 22px;
  line-height: 28px;
}