/*
  cpt-city: wkp/strat/eons (cpt)

  colours from the Wikigeologic scales, dates (MYa)
  from wikipedia pages

  author: Sémhur
  copyright: Creative commons attribution share-alike 3.0 unported
  year: 2010
  url: https://phillips.shef.ac.uk/pub/cpt-city/wkp/strat
*/
linear-gradient(
  0deg,
  rgb(154, 217, 229)   0.000%,
  rgb(154, 217, 229)  11.292%,
  rgb(251, 154, 148)  11.292%,
  rgb(251, 154, 148)  52.083%,
  rgb(240,   2, 127)  52.083%,
  rgb(240,   2, 127)  79.167%,
  rgb(208,  64,  64)  79.167%,
  rgb(208,  64,  64) 100.000%
);