wave.css

:any-link {
  color: inherit;
  background: none;
  box-shadow: 0 0 1ex 1em var(--tape-hex, seashell);
  border-radius: 0 30% 30% 0;
}

::selection {
  color: skyblue;
  background: #111;
}

:focus {
  outline: thick groove;
}

[class] {
  box-sizing: border-box;
}

.dill {
  min-height: 100vh;
  margin: auto;
}

@media (prefers-color-scheme: dark) {
  .local {
    --tape-white: thistle;
    --tape-hex: slateblue;
    --tape-pink: salmon;
    --tape-blue: deepskyblue;
  }
}

@media all,(prefers-color-scheme: light) {
  .local {
    --tape-hex: violet;
    --tape-pink: sandybrown;
    --tape-white: silver;
    --tape-pink: salmon;
  }
}

.wave {
  flex-basis: 100%;
  padding: 1ex;
}

.surf {
  display: table;
  margin-block-end: 1em;
}

html {
  font-family: sans-serif;
  font-size: max(3ex, 3vw + 3vh);
}

body {
  margin: auto;
  overflow-wrap: anywhere;
}

.doll {
  display: flex;
  flex-flow: column;
  padding: 1em;
  align-items: center;
  justify-items: center;
  justify-content: center;
}

@media (orientation: landscape) {
  .roll {
    writing-mode: sideways-lr;
  }
}

@media (orientation: portrait) {
  .rill {
    writing-mode: sideways-lr;
  }
}

@media (prefers-reduced-motion) {
  [class] {
    transition: none;
  }
}