html, body {
  height: 100%;
}

body {
  background-size: 100%;
}

p {
  margin: 0;
  padding: 0;
}

#clock {
  font-family: 'Share Tech Mono', monospace;
  color: #ffffff;
  text-align: center;
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
          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: 80px;
  padding: 5px 0;
}
#clock .date {
  letter-spacing: 0.1em;
  font-size: 24px;
}
#clock .text {
  letter-spacing: 0.1em;
  font-size: 12px;
  padding: 20px 0 0;
}


#slide_bg{
  width: 100%;
  height: 100vh;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  backface-visibility: hidden;
  animation: slidebg 30s linear infinite 0s;
  animation-timing-function: ease-in-out;
  background-image: url(1.jpg);
}
@keyframes slidebg {
  0% {
    background-image: url(1.jpg);
  }  
  25% {
    background-image: url(2.jpg);
  }
  50% {
    background-image: url(3.jpg);
  }
  75% {
    background-image: url(4.jpg);
  }
  100% {
    background-image: url(5.jpg);
  }
  
}