::selection {
  color: white;
  background: rgba(0, 0, 255, 0.99);
}

::-webkit-scrollbar {
  -webkit-appearance: none;
  width: 5px;
  height: 5px;
}

::-webkit-scrollbar-thumb {
  background: black;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  position: relative;
  display: flex;
  flex-flow: column wrap;
  justify-content: center;
  align-items: center;
  height: 100vh;
  padding: 1em;
  font-family: 'Arial';
  font-size: 9px;
  color: black;
  background: white;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.invert {
  filter: invert(100) blur(3px);
  background: black;
}

.switch {
  width: 4em;
  height: 4em;
  z-index: 5;
  margin: 0 0 3em 0;
  border: 4px solid black;
  border-radius: 100px;
  cursor: pointer;
}

.switch:hover {
  background: black;
}

.switch.active {
  background: black;
}

#switch-invert {
  bottom: 1em;
  right: 50%;
}

#switch-border {
  bottom: 1em;
  left: 1em;
}

.row {
  position: relative;
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 2em 0;
}

.row:last-of-type {
  margin: -1em 0 0 0;
}

.letter {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 14em;
  padding: 2em 1em;
  border-radius: 100000px;
  transition: all 50ms;
}

.letter:hover {
  background: white;
  transform-origin: center;
  transform: scale(3);
  box-shadow: 0em -0.05em 0.2em rgba(0, 0, 0, 0.2);
  cursor: crosshair;
  z-index: 5;
}

.letter svg {
  fill: black;
}

.lines {
  display: none;
  top: 8em;
  width: 100vw;
  position: absolute;
  z-index: -1;
  opacity: 0.2;
}

.line {
  width: 100%;
  border-bottom: 1px solid black;
}

.line:first-of-type {
  margin: 0 0 4em 0;
}