* {
  border: none;
  padding: 0px;
  margin: 0px;
  box-sizing: border-box;
}

.controles {
  display: flex;
  justify-content: flex-start;
  align-items: stretch;
  width: 100%;
  background-color: #eee;
  border: 2px solid #000;
  border-radius: 5px;
}

.controle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  width: 100%;
  background-color: #fff;
  border: 2px solid #888;
  border-radius: 5px;
  padding: 5px;
  margin: 5px;
}

button {
  cursor: pointer;
  background-color: #888;
  color: #fff;
  padding: 5px;
  border-radius: 5px;
}

input[type="number"],
#num_objetos {
  border: 1px solid #000;
  padding: 5px;
  border-radius: 5px;
  margin-bottom: 5px;
  width: 150px;
}

.palco {
  display: flex;
  width: 100%;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  background-color: #eee;
  border: 2px solid #000;
  border-radius: 5px;
  position: absolute;
  overflow: hidden;
}

.bola {
  position: absolute;
  border-radius: 100px;
}