* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #000;
}

.container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 150px;
  height: 250px;
}

.container span {
  position: absolute;
  width: 50px;
  height: 0;
  background: #db0001;
}

.left-line {
  left: 0;
  bottom: 0;
  animation: animate 1s linear forwards;
  animation-delay: 1s;
}

.center-line {
  top: 0;
  left: 0;
  transform: skewX(22deg);
  transform-origin: top left;
  box-shadow: 0 0 50px #000;
  animation: animate 1s linear forwards;
  animation-delay: 2s;
}

.right-line {
  right: 0;
  bottom: 0;
  animation: animate 1s linear forwards;
  animation-delay: 3s;
}

.container::after {
  content: "";
  position: absolute;
  width: 120%;
  height: 20px;
  background: #000;
  border-radius: 50%;
  z-index: 5;
  bottom: -10px;
  left: -10%;
}

@keyframes animate {
  100% {
    height: 100%;
  }
}