Presents Pattern

CSS

.html {
  background:
    linear-gradient(-45deg, transparent 85%, red 85%) 71em -29em,
    linear-gradient(135deg, transparent 85%, red 85%) 29em -71em,
    linear-gradient(45deg, transparent 85%, red 85%) 29em 71em,
    linear-gradient(225deg, transparent 85%, red 85%) 71em -71em,
    radial-gradient(circle, red 40%, transparent 40%) 50em 51em,
    linear-gradient(135deg, transparent 37%, white 37%, white 64%, transparent 64%) 0em 0em,
    linear-gradient(45deg, transparent 37%, white 37%, white 64%, transparent 64%) 0em 0em;
  background-size: 100em 100em;
  background-color: red;
  font-size: 1px;
}
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