style.css

@import url('https://fonts.googleapis.com/css2?family=PT+Sans+Caption:wght@400;700&display=swap');

body {
  font-family: 'PT Sans Caption', sans-serif;
  margin: 0;
  text-align: center;
}

button {
  background-color: #bbb;
  border: 1px solid currentColor;
  display: inline-block;
  font-family: inherit;
}

button:enabled  { cursor: pointer; }
button:disabled { color: #999;     }

a:hover, a:focus, button:enabled:hover, button:enabled:focus {
  background-color: currentColor;
  background-image:
      linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9));
  outline: none;
}

.bar {
  position: relative;
}

.bar:before {
  background-color: #bbb;
  content: "";
  display: block;
  height: 1px;
  left: 16px;
  position: absolute;
  right: 16px;
  top: 50%;
  z-index: -1;
}

.bar > * {
  background-color: white;
  border: 1px solid currentColor;
}

.red    { color: #c66; }
.blue   { color: #66c; }
.yellow { color: #cc0; }
.purple { color: #c0c; }

section {
  max-width: 480px;
  margin: auto;
}

dl {
  text-align: left;
}

dt {
  float: left;
  font-weight: bold;
  width: 100px;
}

dd {
  margin-bottom: 10px;
  margin-left: 100px;
}