body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 4rem;
  background: #f7f7fb;
  color: #1f2937;
}

.demo-card {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem;
  border-radius: 24px;
  background: white;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.foo {
  font-weight: 800;
  line-height: 1.1;
  transition: color 0.25s ease, font-size 0.25s ease;
}

/* English */
html[lang="en"] .foo,
html[lang="en-US"] .foo,
html[lang^="en-"] .foo {
  color: #1a2c66;
  font-size: 5rem;
}

/* German */
html[lang="de"] .foo,
html[lang^="de-"] .foo {
  color: #0f766e;
  font-size: 2.6rem;
}

/* Spanish */
html[lang="es"] .foo,
html[lang^="es-"] .foo {
  color: #be123c;
  font-size: 2.8rem;
}

.description {
  font-size: 1.1rem;
  line-height: 1.6;
}