body {
  background: border 1px olive;
  background-color: gold;
  color: black;
  font-family: Verdana;
}

h1, h2, h3, p {
  text-align: center;
}

#logo {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}

.center {
  margin-left: auto;
  margin-right: auto;
  margin: auto;
}

table, th, td {
  background-color: indigo;
  border: 1px solid;
  border-collapse: collapse;
}

a {
  color: green
}

a:hover {
  color: white
}