h1 {
  color: Pink;
  background-color: whitesmoke;
  width: 40%;
  text-align: center;
}
p {
  color: red;
  background-color: pink;
  width: 40%;
  text-align: center;
}
img {
  width: 100px;
  height: 100px;
}
#gioithieuban {
  background-color: whitesmoke;
}