html, body {
  background-color: black;
  color: white;
  text-align: center;
  font-family: sans-serif;
}
.timer {
  font-size: 100px;
  font-weight: bold;
  font-variant-numeric: tabular-nums;
}
button {
  font-size: 20px;
}
.hide {
  opacity: 0;
}
.wrapper {
  margin-top: 100px;
}
@media (max-width: 600px) {
  .wrapper {
    margin-top: 20px;
  }
}
.intro,
button {
  transition: opacity 2s;
}
.intro {
  padding: 30px;
  max-width: 650px;
  line-height: 1.5;
  font-size: 14px;
  top: 10%;
  margin: auto;
}
#transcript {
  transition: opacity 3s;
  font-family: serif;
  font-size: 24px;
  font-style: italic;
}
.transcript-hide {
  opacity: 0;
}
.transcript-show {
  opacity: 1;
}
a,
a:visited {
  color: white;
}