body {
  font-family: Arial, sans-serif;
  background-image: url("fondo2.png");
  margin: 20px;
  text-align: center;
}

h1{
font-style=italic;
color:purple;background-color:yellow;
margin:20px;
}

.bases{
background-color:yellow;
color:purple;
padding:100px;
margin:10px;
width:600px;
}
button{
padding:10px;
color:#ffff;
background-color:#0000ff;
}