Frozen Pattern

CSS

.html {
  background:
    linear-gradient(0deg, transparent 43%, rgba(255, 255, 255, .3) 43%, rgba(255, 255, 255, .3) 57%, transparent 57%) 0 5em,
    radial-gradient(circle, transparent 40%, #8BD2FC 40%, #8BD2FC 96%, transparent 96%) -50em -45em,
    linear-gradient(90deg, transparent 40%, #fff 40%, #fff 60%, transparent 60%) 25em 25em,
    linear-gradient(0deg, transparent 40%, #fff 40%, #fff 60%, transparent 60%) 25em 30em,
    linear-gradient(45deg, transparent 42%, #fff 42%, #fff 58%, transparent 58%) 26em 30em,
    linear-gradient(135deg, transparent 42%, #fff 42%, #fff 58%, transparent 58%) 25em 30em;
  background-size: 100em 100em, 100em 100em, 50em 50em, 50em 50em, 50em 50em, 50em 50em;
  background-color: #8BD2FC;
  font-size: 1px;
}
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