body {
  background: #000000;
  overflow: hidden;
  font-family: "Open Sans", sans-serif;
}
:root {
  --mountain: #3f2c10;
}
.untoldcoding {
  margin: 0 auto;
  position: relative;
  display: block;
  width: 600px;
  height: 250px;
  overflow: hidden;
  border-bottom: 3px solid #fff;
  color: #fff;
}
.mountain {
  position: absolute;
  right: -900px;
  bottom: -20px;
  width: 2px;
  height: 2px;
  box-shadow: 0 0 0 50px var(--mountain), 60px 50px 0 70px var(--mountain),
    90px 90px 0 50px var(--mountain), 250px 250px 0 50px var(--mountain),
    290px 320px 0 50px var(--mountain), 320px 400px 0 50px var(--mountain);
  transform: rotate(130deg);
  animation: mtn 20s linear infinite;
}
.hill {
  position: absolute;
  right: -900px;
  bottom: -50px;
  width: 400px;
  border-radius: 50%;
  height: 20px;
  box-shadow: 0 0 0 50px #0a3242, -20px 0 0 20px #4db6ac, -90px 0 0 50px #4db6ac,
    250px 0 0 50px #4db6ac, 290px 0 0 50px #4db6ac, 620px 0 0 50px #4db6ac;
  animation: hill 4s 2s linear infinite;
}
.tree,
.tree:nth-child(2),
.tree:nth-child(3) {
  position: absolute;
  height: 100px;
  width: 35px;
  bottom: 0;
  background: url(./tree.svg) no-repeat;
}
.rock {
  margin-top: -17%;
  height: 2%;
  width: 2%;
  bottom: -2px;
  border-radius: 20px;
  position: absolute;
  background: #ddd;
}
.truck,
.wheels {
  transition: all ease;
  width: 85px;
  margin-right: -60px;
  bottom: 0px;
  right: 50%;
  position: absolute;
  background: #eee;
}
.truck {
  background: url(./truck.svg) no-repeat;
  background-size: contain;
  height: 60px;
}
.truck:before {
  content: " ";
  position: absolute;
  width: 25px;
  box-shadow: -30px 28px 0 1.5px #ca0b0b, -35px 18px 0 1.5px #a1ad19;
}
.wheels {
  background: url(./wheels.svg) no-repeat;
  height: 15px;
  margin-bottom: 0;
}

.tree {
  animation: tree 3s 0s linear infinite;
}
.tree:nth-child(2) {
  animation: tree2 2s 0.15s linear infinite;
}
.tree:nth-child(3) {
  animation: tree3 8s 0.05s linear infinite;
}
.rock {
  animation: rock 4s -0.53s linear infinite;
}
.truck {
  animation: truck 4s 0.08s ease infinite;
}
.wheels {
  animation: truck 4s 0.001s ease infinite;
}
.truck:before {
  animation: wind 1.5s 0s ease infinite;
}

@keyframes tree {
  0% {
    transform: translate(1350px);
  }
  50% {
  }
  100% {
    transform: translate(-50px);
  }
}
@keyframes tree2 {
  0% {
    transform: translate(650px);
  }
  50% {
  }
  100% {
    transform: translate(-50px);
  }
}
@keyframes tree3 {
  0% {
    transform: translate(2750px);
  }
  50% {
  }
  100% {
    transform: translate(-50px);
  }
}

@keyframes rock {
  0% {
    right: -200px;
  }
  100% {
    right: 2000px;
  }
}
@keyframes truck {
  0% {
  }
  6% {
    transform: translateY(0px);
  }
  7% {
    transform: translateY(-6px);
  }
  9% {
    transform: translateY(0px);
  }
  10% {
    transform: translateY(-1px);
  }
  11% {
    transform: translateY(0px);
  }
  100% {
  }
}
@keyframes wind {
  0% {
  }
  50% {
    transform: translateY(3px);
  }
  100% {
  }
}
@keyframes mtn {
  100% {
    transform: translateX(-2000px) rotate(130deg);
  }
}
@keyframes hill {
  100% {
    transform: translateX(-2000px);
  }
}