index.css

body {
  margin: 0;
  color: #212529;
  background-color: #f4f5f6;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
  font-size: 16px;
  line-height: 1.2em;
}

a,
a:focus,
a:visited {
  color: #212529;
  text-decoration: underline;
}

.container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.row {
  margin: 0 3vw;
  margin-bottom: 5vh;
}

.row:first-child {
  flex: 1;
}

.hide {
  opacity: 0;
}

#is-art {
  margin-top: 3vw;
  font-weight: 700;
  font-size: 5em;
  line-height: 0.875em;
}

#is-art-status {
  text-decoration: underline;
}

#is-art-error,
#is-art-provenance {
  min-height: 1.2em;
}

#is-art-error {
  color: #ab4642;
}

#is-art-details p {
  font-weight: 300;
}

#is-art-details .is-art-artwork {
  font-weight: 400;
}

.is-art-title {
  font-style: italic;
}

details summary {
  cursor: pointer;
}

details summary > * {
  display: inline;
}

fieldset {
  min-width: 0;
  padding: 0;
  margin: 0;
  border: 0;
}

#is-art-keyfile {
  max-width: 90vw;
}

.is-art-label {
  color: #444c55;
  margin: 0.3125em 0;
  display: block;
  text-transform: uppercase;
  font-size: 0.75em;
  letter-spacing: 0.1em;
}

.is-art-form-text,
.is-art-btn {
  font-family: monospace;
}

.is-art-form-group {
  margin: 1.25em 0;
}

@media screen and (min-width: 660px) {
  #is-art-details {
    max-width: 660px;
  }
}

@media screen and (min-width: 1000px) {
  #is-art {
    font-size: 8vw;
  }
}