.loader {
  width: 35px;
  height: 80px;
  position: relative;
}
.loader:after {
  content: "";
  position: absolute;
  inset: 0;
  padding: 3px 5px;
  border-top: 1px solid #bbb6aa;
  border-bottom: 4px solid #bbb6aa;
  background:
    linear-gradient(#77d4d4 0 0) bottom no-repeat content-box,
    #e4e0d7;
  mix-blend-mode: darken;
  animation: drink 1.5s infinite linear;
}
.loader:before {
  content: "";
  position: absolute;
  inset: -18px calc(50% - 2px) 8px;
  background: #eb6b3e;
  transform-origin: bottom;
  transform: rotate(8deg);
}
@keyframes drink {
  0% {
    background-size: 100% 100%;
  }
  100% {
    background-size: 100% 5%;
  }
}