body {
  background-color: #ffcc66;
}
canvas {
  border: solid black 1px;
  background-color: white;
}
.tool_selection_button {
  width: 100%;
  aspect-ratio: 1/1;
  margin: 0;
}
.flexbox-container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.flexbox-container-col {
  margin: 10px;
  height: 460px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
}