body {
  background-color: black;
  text-align: center;
}
#banner {
  margin-top: 10px;
  width: 90%;
  max-width: 1000px;
  border-radius: 15px 15px 15px 15px;
}
.button {
  height: 40px;
  width: 40px;
  padding: 5px;
  padding-top: 10px;
}