body {
  font-family: Arial, sans-serif;
  text-align: center;
  margin: 0 auto ;
  background-color: orange;
}

h1 {
  color: #333;
}

#gameCanvas {
  border: 5px solid #003cff;

}

#btn_reiniciar
{
  position: relative;
  background-color: green;
  color: beige;
right: 200px;
bottom: 80px;
width: 150px;
height: 40px;
font-weight: 600;
}