body {
  background-color: #181A1E;
  color: #C6CBD2;
  font-family: Courier;
}
a:link {
  color: #99C4FF;
  background-color: transparent;
  text-decoration: none;
}

a:visited {
  color: #CCA0F8;
  background-color: transparent;
  text-decoration: none;
}

a:active {
  color: #F8A5BC;
  background-color: transparent;
  text-decoration: none;
}

.header {
  position: sticky;
  top: 0;
  display: flex;
  border-bottom-style: solid;
  border-bottom-color: #C6CBD2;
  border-bottom-width: 3px;
  padding: 5px;
  background-color: #181A1E;
  font-size: 150%;
}

.header > div {
  width:min-content;
  margin: auto;
}

.imggrid {
  display: inline-grid;
  grid-template-columns: auto auto auto;
  padding: 10px;
}

.imggrid > div {
  text-align: center;
  width: min-content;
  margin: auto;
}