css日夜切换

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html

css

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html

css

* {
  margin: 0;
  padding: 0;
}

body {
  background-color: #1f1f1f;
}

.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  border-radius: 20px;
  overflow: hidden;
}

.day, .night {
  position: relative;
  width: 100%;
  height: 100%;
  transition: 1s;
}

.day {
  background: linear-gradient(#fff3a0 20%, #ffc31e 60%, #3a8bc1, #255d82);
}

.wave {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 200%;
  height: 200%;
  z-index: 100;
  transition: 1s;
}

.wave1 {
  top: 60%;
  border-radius: 45%;
  background-color: rgba(89, 207, 247, 0.6);
  animation: rotating 5s linear infinite;
}

.wave2 {
  top: 68%;
  border-radius: 40%;
  background-color: rgba(37, 130, 206, 0.5);
  animation: rotating 8s linear infinite;
}

.wave3 {
  top: 70%;
  border-radius: 37%;
  background-color: rgba(20, 113, 188, 0.5);
  animation: rotating 12s linear infinite;
}

@keyframes rotating {
  100% {
    transform: translateX(-50%) rotate(360deg);
  }
}
.sun {
  position: absolute;
  top: 5%;
  left: 20%;
  width: 80px;
  height: 80px;
  background-color: #ffcc3e;
  border-radius: 50%;
  box-shadow: 0 0 25px #ffcc3e;
}

.cloud {
  position: absolute;
  top: 20%;
  width: 120px;
  height: 40px;
  background-color: #fff;
  border-radius: 50px;
  animation: moving 5s linear infinite alternate-reverse;
}

.cloud::before {
  content: "";
  position: absolute;
  top: -65%;
  left: 10%;
  width: 50px;
  height: 50px;
  background-color: #fff;
  border-radius: 50%;
}

.cloud::after {
  content: "";
  position: absolute;
  top: -35%;
  left: 45%;
  width: 40px;
  height: 40px;
  background-color: #fff;
  border-radius: 50%;
}

@keyframes moving {
  0% {
    left: 30%;
  }
  100% {
    left: 50%;
  }
}
.night {
  background: linear-gradient(#255d82, #1d4763, #0e2230);
}

.container:hover .day, .container:hover .night {
  transform: translateY(-400px);
}

.moon {
  position: absolute;
  top: 5%;
  right: 20%;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  box-shadow: inset -20px -15px 0 #fff;
}

.star {
  position: absolute;
  width: 4px;
  height: 4px;
  background-color: #fff;
  border-radius: 50%;
  box-shadow: 0 0 10px #fff;
  animation: staring 2s linear infinite;
}

.star1 {
  top: 47%;
  left: 100%;
  animation-delay: -0.1s;
}

.star2 {
  top: 28%;
  left: 23%;
  animation-delay: -0.2s;
}

.star3 {
  top: 7%;
  left: 14%;
  animation-delay: -0.3s;
}

.star4 {
  top: 50%;
  left: 56%;
  animation-delay: -0.4s;
}

.star5 {
  top: 36%;
  left: 82%;
  animation-delay: -0.5s;
}

.star6 {
  top: 29%;
  left: 26%;
  animation-delay: -0.6s;
}

.star7 {
  top: 29%;
  left: 10%;
  animation-delay: -0.7s;
}

.star8 {
  top: 25%;
  left: 24%;
  animation-delay: -0.8s;
}

.star9 {
  top: 12%;
  left: 55%;
  animation-delay: -0.9s;
}

.star10 {
  top: 32%;
  left: 9%;
  animation-delay: -1s;
}

.star11 {
  top: 41%;
  left: 3%;
  animation-delay: -1.1s;
}

.star12 {
  top: 37%;
  left: 97%;
  animation-delay: -1.2s;
}

.star13 {
  top: 10%;
  left: 61%;
  animation-delay: -1.3s;
}

.star14 {
  top: 15%;
  left: 24%;
  animation-delay: -1.4s;
}

.star15 {
  top: 8%;
  left: 28%;
  animation-delay: -1.5s;
}

.star16 {
  top: 20%;
  left: 59%;
  animation-delay: -1.6s;
}

.star17 {
  top: 37%;
  left: 35%;
  animation-delay: -1.7s;
}

.star18 {
  top: 11%;
  left: 82%;
  animation-delay: -1.8s;
}

.star19 {
  top: 19%;
  left: 10%;
  animation-delay: -1.9s;
}

.star20 {
  top: 5%;
  left: 55%;
  animation-delay: -2s;
}

.star21 {
  top: 2%;
  left: 26%;
  animation-delay: -2.1s;
}

.star22 {
  top: 28%;
  left: 20%;
  animation-delay: -2.2s;
}

.star23 {
  top: 35%;
  left: 29%;
  animation-delay: -2.3s;
}

.star24 {
  top: 48%;
  left: 21%;
  animation-delay: -2.4s;
}

.star25 {
  top: 18%;
  left: 67%;
  animation-delay: -2.5s;
}

.star26 {
  top: 31%;
  left: 69%;
  animation-delay: -2.6s;
}

.star27 {
  top: 3%;
  left: 55%;
  animation-delay: -2.7s;
}

.star28 {
  top: 37%;
  left: 74%;
  animation-delay: -2.8s;
}

.star29 {
  top: 50%;
  left: 38%;
  animation-delay: -2.9s;
}

.star30 {
  top: 17%;
  left: 2%;
  animation-delay: -3s;
}

.star31 {
  top: 2%;
  left: 69%;
  animation-delay: -3.1s;
}

.star32 {
  top: 13%;
  left: 28%;
  animation-delay: -3.2s;
}

.star33 {
  top: 23%;
  left: 38%;
  animation-delay: -3.3s;
}

.star34 {
  top: 36%;
  left: 17%;
  animation-delay: -3.4s;
}

.star35 {
  top: 33%;
  left: 79%;
  animation-delay: -3.5s;
}

.star36 {
  top: 23%;
  left: 96%;
  animation-delay: -3.6s;
}

.star37 {
  top: 27%;
  left: 44%;
  animation-delay: -3.7s;
}

.star38 {
  top: 20%;
  left: 70%;
  animation-delay: -3.8s;
}

.star39 {
  top: 9%;
  left: 58%;
  animation-delay: -3.9s;
}

.star40 {
  top: 9%;
  left: 4%;
  animation-delay: -4s;
}

@keyframes staring {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}
.container:hover .wave1 {
  background-color: rgba(57, 119, 160, 0.6);
}

.container:hover .wave2 {
  background-color: rgba(29, 76, 107, 0.5);
}

.container:hover .wave3 {
  background-color: rgba(14, 50, 73, 0.5);
}

.fish {
  position: absolute;
  top: 85%;
  width: 45px;
  height: 30px;
  background-color: #b2b52b;
  border-radius: 50%;
  z-index: 100;
  animation: swimming 4s infinite;
}

.fish::before {
  position: absolute;
  content: "";
  border-style: solid;
  border-width: 15px 0 15px 20px;
  border-color: transparent transparent transparent #b2b52b;
}

.fish .eye {
  position: absolute;
  top: 7px;
  right: 10px;
  width: 7px;
  height: 7px;
  background-color: #fff;
  border-radius: 50%;
}

@keyframes swimming {
  0% {
    left: -100px;
  }
  50% {
    left: 250px;
  }
  100% {
    left: 450px;
  }
}

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