* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: sans-serif;
}

.btn {
  width: 100px; 
  margin-bottom: 5px;
  padding: 6px 12px;
  font-weight: 500;
  font-size: 20px;
  color: #fff;
  background-color: #0088ff;
  border: 1px solid #fff;
  border-radius: 8px;
  cursor: pointer;
}