styles.css

aside {
  margin-top: 10px;
}

h1 {
  margin-top: 2em;
}

h2 {
  margin-top: 2em;
}

.interactive {
  background-color: white;
  padding: 1em;
  filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, .2));
}

.math-input {
  display: inline-block;
  width: 220px;
}

.math-input input {
  font-family: monospace !important;
  font-size: 0.9em !important;
  border: 1px dashed #ccc;
  padding: 3px;
  border-radius: 4px;
  outline: none;
}

figure.page {
  margin-bottom: 1em;
}

.references {
  overflow-wrap: break-word;
}