* {
  box-sizing: border-box;
}
body {
  background: #233343;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  perspective: 1200px;
  transform-style: preserve-3d;
}
.tree {
  position: fixed;
  height: 50vmin;
  width: 25vmin;
  transform-style: preserve-3d;
  -webkit-animation: spin 2s infinite linear;
          animation: spin 2s infinite linear;
}
.tree__light {
  transform-style: preserve-3d;
  position: absolute;
  height: 1vmin;
  width: 1vmin;
  border-radius: 50%;
  -webkit-animation: flash calc(var(--speed) * 1s) calc(var(--delay) * 1s) infinite steps(4), appear 0.5s calc(var(--appear) * 0.05s) both;
          animation: flash calc(var(--speed) * 1s) calc(var(--delay) * 1s) infinite steps(4), appear 0.5s calc(var(--appear) * 0.05s) both;
  left: 50%;
  transform: translate(-50%, 50%) rotateY(calc(var(--rotate, 0) * 1deg)) translate3d(0, 0, calc(var(--radius, 0) * 1vmin));
  bottom: calc(var(--y, 0) * 1%);
}
.tree__star {
  stroke-width: 5vmin;
  stroke: #f5e0a3;
  filter: drop-shadow(0 0 2vmin #fcf1cf);
  height: 5vmin;
  width: 5vmin;
  overflow: visible !important;
  bottom: 100%;
  left: 50%;
  transform: translate(-50%, 0);
  position: absolute;
  stroke-dasharray: 1000 1000;
  fill: none;
  -webkit-animation: stroke 1s calc((var(--delay) * 0.95) * 0.05s) both;
          animation: stroke 1s calc((var(--delay) * 0.95) * 0.05s) both;
}
@-webkit-keyframes stroke {
  from {
    stroke-dashoffset: -1000;
  }
}
@keyframes stroke {
  from {
    stroke-dashoffset: -1000;
  }
}
@-webkit-keyframes spin {
  to {
    transform: rotateY(360deg);
  }
}
@keyframes spin {
  to {
    transform: rotateY(360deg);
  }
}
@-webkit-keyframes appear {
  from {
    opacity: 0;
  }
}
@keyframes appear {
  from {
    opacity: 0;
  }
}
@-webkit-keyframes flash {
  0%, 100% {
    background: #f00;
  }
  20% {
    background: #fff;
  }
  40% {
    background: #f00;
  }
  60% {
    background: #fff;
  }
  80% {
    background: #f00;
  }
}
@keyframes flash {
  0%, 100% {
    background: #f00;
  }
  20% {
    background: #fff;
  }
  40% {
    background: #f00;
  }
  60% {
    background: #fff;
  }
  80% {
    background: #f00;
  }
}
/* probando */
:root {
  --mainColor: #B3C9C4;
}

@keyframes blink {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes expand {
  0% {
    letter-spacing: 0em;
  }
  100% {
    letter-spacing: 0.02em;
  }
}
.container {
  margin: 0 auto;
  text-align: center;  
  align-items: end;
  justify-content: center;
  background-size: cover;
  display: end;
  font-family: "Poppins", sans-serif;
  color: rgb(213, 223, 130);
    
}

a {
  font-size: 2rem;
  font-weight: normal;
  letter-spacing: 0.125rem;
  color: rgb(213, 223, 130);
  text-decoration: none;
  cursor: auto;
  background: linear-gradient(
    to bottom,
    var(--mainColor) 0%,
    var(--mainColor) 100%
  );
  background-position: 0 100%;
  background-repeat: repeat-x;
  background-size: 4px 4px;
  transition: background-size 0.5s;
  animation: expand infinite alternate 2.5s ease;
}
a:hover {
  background-size: 4px 100px;
}
li {
  display: inline-block;
  font-size: 1em;
  list-style-type: none;
  padding: 1em;
  text-transform: uppercase;
  transition: background-color 1.5s;
  -webkit-transition: background-color 1.5s;
  animation: blink infinite alternate 2.5s ease;
}
li :hover {
  background-color: rgb(85, 104, 104);
}
li span {
  display: block;
  font-size: 2rem;
}
/* .message {
    font-size: 4rem;
} */
#content {
  padding: 1rem;
}
#bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
}
#leftside {
  position: absolute;
  top: 10px;
  right: 15px;
}