sky.css

::selection {
  background: deepskyblue;
  color: #101;
}

:root {
  color: #ddd;
  background: #111;
}

:focus {
  outline: thick groove;
}

:any-link {
  color: inherit;
  filter: hue-rotate(-36deg);
}

:any-link:focus,
:any-link:hover {
  filter: hue-rotate(-72deg);
}

.shy {
  text-shadow:
    0 -1vh 1vmin,
    0 -3vh 1vmin,
    0 -5vh 2vmin,
    0 -8vh 3vmin,
    0 -13vh 5vmin,
    0 -21vh 8vmin,
    0 -34vh 13vmin,
    0 -55vh 21vmin;
}

.alove {
   color: #012;
   background-color: violet;
   background-image: linear-gradient(.5turn, coral, violet, salmon, powderblue, lightskyblue, skyblue, deepskyblue);
}

.alone {
   color: pink;
   color: salmon;
   color: papayawhip;
   color: peachpuff;
   background-color: purple;
   background-image: linear-gradient(.5turn, blueviolet, darkviolet, darkmagenta, purple, indigo, midnightblue, #111);
}