body {
  margin-left: 20px;
  background-image: url("/supi-background.jpg"), url("/supi-background-extended.jpg");
  background-repeat: repeat-x, repeat;
  color: white;
  font-family: Serif;
}

h1 {
  text-align: center;
}

.tabs {
  display: flex;
  width: 1000px;
  justify-content: space-around;
  margin: auto;
  margin-bottom: 15px;
}

.tab {
  border: 3px solid #103a70;
  background: black;
  padding: 10px;
  width: 100px;
}

.main {
  border: 5px ridge #66001b;
  background: black;
  padding: 10px;
  width: 800px;
  margin: auto;
}

.ending {
  text-align: center
}