body {
  max-width: 100ex;
  margin: 0 auto;
  background-color: white;
  color: black;
  text-align: center;
}
#sites ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  row-gap: 1ex;
  column-gap: 1ex;
  margin: 0;
}
#sites li {
  display: flex;
  flex-grow: 1;
  margin: 0;
  padding: 0;
}
#sites ul::after {
  content: "";
  flex-grow: 10;
}
#sites a {
  display: block;
  position: relative;
  flex-grow: 1;
  min-height: 3em;
  min-width: 5em;
  max-width: 10em;
  color: rgb(255, 255, 127);
  background-color: rgb(70, 130, 180);
  border: 0.3ex outset rgb(70, 130, 180);
  border-radius: 1ex;
  padding: 1ex;
}
#sites a span {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}
#sites a:hover {
  border-style: inset;
  color: rgb(245, 245, 117);
  background-color: rgb(65, 125, 175);
}