.controls {
  margin-top: 1em;
  overflow: auto;
  display: flex;
  justify-content: space-between;
}
#hint-button-container, #feedback-container,#run-button-container {
  width: 33.3%;
  font-size: 16px;
  display: flex;
  justify-content: center;
}
.ai-button{
  width: 100%;
}
#feedback-container{
  font-weight: bold;
}