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

* {
  box-sizing: border-box;
}

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

body {
  display: flex;
  flex-flow: column nowrap;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  padding: 1em;
  font-family: 'Arial';
  font-size: 18px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a, a:visited {
  display: inline-block;
  padding: 0.25em 0.4em;
  border-radius: 1000px;
  font-size: 5em;
  text-decoration: none;
  color: black;
}

a:hover {
  box-shadow: 0em -0.05em 0.2em rgba(0, 0, 0, 0.2);
  transform: scale(-1, 1);
}