.loader {
  position: relative;
  width: 120px;
  height: 90px;
  margin: 0 auto;
}
.loader:before {
  content: "";
  position: absolute;
  bottom: 30px;
  left: 50px;
  height: 30px;
  width: 30px;
  border-radius: 50%;
  background: #0b8040;
  animation: loading-bounce 0.5s ease-in-out infinite alternate;
}
.loader:after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  height: 7px;
  width: 45px;
  border-radius: 4px;
  box-shadow: 0 5px 0 #dce8e2, -35px 50px 0 #dce8e2, -70px 95px 0 #dce8e2;
  animation: loading-step 1s ease-in-out infinite;
}

@keyframes loading-bounce {
  0%   { transform: scale(1, 0.7); }
  40%  { transform: scale(0.8, 1.2); }
  60%  { transform: scale(1, 1); }
  100% { bottom: 140px; }
}
@keyframes loading-step {
  0% {
    box-shadow: 0 10px 0 rgba(0,0,0,0),
                0 10px 0 #dce8e2,
                -35px 50px 0 #dce8e2,
                -70px 90px 0 #dce8e2;
  }
  100% {
    box-shadow: 0 10px 0 #dce8e2,
                -35px 50px 0 #dce8e2,
                -70px 90px 0 #dce8e2,
                -70px 90px 0 rgba(0,0,0,0);
  }
}