body {
  height: 100vh;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: red;
  background: radial-gradient(ellipse at center, #0a2e38 0%, #000000 70%);
  background-image: linear-gradient(to top, #fbc2eb 0%, #a6c1ee 100%);
  background-size: 100vh;
}
p {
  margin: 0;
  padding: 10px;
}
#clock {
  font-family: "Microsoft YaHei",微软雅黑;
  text-align: center;
  position: absolute;
  left: 50%;
  top: 45%;
  transform: translate(-50%, -50%);
  color: #daf6ff;
  text-shadow: 0 0 20px #0aafe6, 0 0 20px rgba(10, 175, 230, 0);
}
#clock .time {
  letter-spacing: 0.05em;
  font-size: 120px;
  padding: 5px 0;
}
#clock .date {
  letter-spacing: 0.1em;
  font-size: 60px;
}

#clock .text {
  letter-spacing: 0.1em;
  font-size: 60px;
  padding: 30px 0 0;
}