body {
  background-color: #131519;
  text-align: center;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.top {
  display: flex;
  justify-content: space-between;
  width: 250px;
  margin: 20px auto;
}

h3 {
  border: none;
  color: black;
  background-color: yellow;
  border-radius: 5px;
  padding: 7px;
}

.controls {
  display: flex;
  gap: 8px;
}

#start-button,
#restart-button {
  background-color: #131519;
  border: none;
  cursor: pointer;
}

#start-button img,
#restart-button img {
  width: 40px;
  height: auto;
}

.grid {
  width: 200px;
  height: 400px;
  background-color: #1C1E22;
  display: flex;
  flex-wrap: wrap;
  margin: auto;
}

.grid div {
  width: 20px;
  height: 20px;
  border: 1px solid #131519;
  box-sizing: border-box;
}

.button-container {
  width: 200px;
  margin: 10px auto;
  display: flex;
  justify-content: space-evenly;
}

.btn {
  background-color: #131519;
  border: none;
  cursor: pointer;
}

.btn img {
  width: 40px;
  height: auto;
}