body {
  text-align: center;
}

.main {
  background-color: palegoldenrod;
  font-family: Sans Serif;
  margin: 1em;
  padding: 1em;
  border: solid darkgrey;
}

h1 {
  background-color: blue;
  color: white;
}

#.gai {
#    border: dashed darkgrey;
#}