body {
  font-family: sans-serif;
}

body {
  font-family: "Roboto", sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  padding: 1em;
}

svg {
  background-color: antiquewhite;
  width: 800px;
  height: 500px;
}

rect {
  stroke: darkred;
  stroke-width: 2;
}

div.command {
  padding: 1em;

  button {
    width: 25em;
    padding: 0.5em 1em;
    cursor: pointer;
  }
}

.gray {
  color: gray;
}

text.name {
  font-weight: bold;
}