html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: sans-serif;

  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
}

.panel {
  min-width: 400px;
  padding: 1em;
}

.svg-wrapper {
  max-width: 30em;
}

button {
  font-size: 1em;
}