:root {
  --background-size: 256px;
  --header-color: 0, 0, 72;
}

main {
  background: url(../images/stripes_blue.png);
}

body {
  background: fixed linear-gradient(#00003200, #00008730), url(../images/bg/grid.png), fixed linear-gradient(#000, #000032);
  animation: xscroll 20s linear infinite;
}

section {
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 40em;
}

.screenshots img {
  max-width: 25%;
  height: auto;
}

a img.download {
  max-width: 90%;
  height: auto;
  margin: 1em 0;
}

div.screenshots {
  flex-direction: row;
  justify-content: space-around;
  margin-bottom: 3em;
}
.screenshots img {
  padding: 0 1%;
}