Webleb - fragmentos de código

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CSS

body {
  padding: 0;
  margin: 0;
  height: 100vh;
  display: flex;
  justify-content: space-evenly;
  align-items: flex-end;
  background-color: black;
}

lantern {
  height: 150px;
  width: 100px;
  background: rgb(255, 7, 7);
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  animation: up 50s infinite;
  box-shadow: 1px 1px 50px 10px red;
  border-radius: 20px;
}

.lantern::after {
  content: "";
  opacity: 80%;
  width: 30px;
  height: 30px;
  border-radius: 100%;
  position: absolute;
  background: rgb(255, 132, 0);
  animation: light 5s infinite;
}

@keyframes light {
  0%, 100% {
    box-shadow: 1px 1px 20px 10px rgb(255, 132, 0);
  }
  50% {
    box-shadow: 1px 1px 20px 15px rgb(255, 132, 0);
  }
}

@keyframes up {
  0%, 100% {
    transform: translateY(0vh);
  }
  50% {
    transform: translateY(-120vh);
  }
  90% {
    transform: translateY(0px);
  }
}

.lantern:nth-child(2){
  animation: up 40s infinite;
  background-color: rgb(60, 255, 0);
  box-shadow: 1px 1px 50px 10px rgb(60, 255, 0);
}
.lantern:nth-child(3){
  animation: up 55s infinite;
  background-color: rgb(0, 8, 255);
  box-shadow: 1px 1px 50px 10px rgb(0, 8, 255);
}
 .lantern:nth-child(4){
  animation: up 45s infinite;
  background-color: rgb(183, 0, 255);
  box-shadow: 1px 1px 50px 10px rgb(183, 0, 255);
}   
 .lantern:nth-child(5){
  animation: up 40s infinite;
  background-color: rgb(30, 63, 136);
  box-shadow: 1px 1px 50px 10px rgb(30, 63, 136);
}   
   
@media (max-width: 650px){
  .lantern:nth-child(5){
    display: none:
  }
}

@media (max-width: 500px){
  .lantern:nth-child(4){
    display: none:
  }
}   
  
  @media (max-width: 300px){
  .lantern:nth-child(3){
    display: none:
  }
}

@media (max-width: 200px){
  .lantern:nth-child(2){
    display: none:
  }
}
(Leave empty if not needed) */

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