* {
  margin: 0;
  padding: 0;
}

@font-face {
  font-family: digit;
  src: url('../font/digit.ttf');
}

main {
  width: 100%;
  height: 100vh;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

main p {
  font-size: 32px;
  margin-bottom: 12px;
}

main span {
  font-family: digit;
  font-size: 20px;
  color: #000;
  background: linear-gradient(to right, #000 0, #000 40%, #fff 50%, #000 60%, #000 100%);
  background: -o-linear-gradient(to right, #000 0, #000 40%, #fff 50%, #000 60%, #000 100%);
  background: -ms-linear-gradient(to right, #000 0, #000 40%, #fff 50%, #000 60%, #000 100%);
  background: -webkit-linear-gradient(to right, #000 0, #000 40%, #fff 50%, #000 60%, #000 100%);
  background-clip: text;
  -o-background-clip: text;
  -ms-background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: sweep-thorough 10s infinite linear;
  -o-animation: sweep-thorough 10s infinite linear;
  -ms-animation: sweep-thorough 10s infinite linear;
  -webkit-animation: sweep-thorough 10s infinite linear;
  text-size-adjust: none;
  -o-text-size-adjust: none;
  -ms-text-size-adjust: none;
  -webkit-text-size-adjust: none;
}

@keyframes sweep-thorough {
  0% {
    background-position: -720px 0;
  }

  100% {
    background-position: 720px 0;
  }
}