* {
  box-sizing: border-box;
}

:root {
  font-size: 0.875rem;
}

body {
  margin: 0;
  background-color: #e5e8ea;
}

#container {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
}

.tweaks-panel {
  position: absolute;
  bottom: 0;
  right: 0;
  padding: 1rem;
  border: 1px solid black;
  border-width: 1px 0 0 1px;
  background-color: white;
}