body {
  background: #66ccff url('https://www.transparenttextures.com/patterns/diamond-upholstery.png');
  font-family: Arial, sans-serif;
  padding: 20px;
  color: black;
}
h1, h2 {
  text-align: center;
}
ul {
  line-height: 1.6;
}
table {
  margin: 0 auto;
  background: blue;
  border-collapse: collapse;
}
th, td {
  padding: 10px;
}