body {
  background: #0f0b0b;
  color: white;
}
.area {
  position: relative;
  width: 100%;
  height: 300px;
  border: 1px solid orangered;
}
.hero {
  position: absolute;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  background: lawngreen;
  border-radius: 10%;
  transform: translateX(0px);
}
.pane1 {
  position: absolute;
  bottom: 40px;
  left: 0px;
  width: 100%;
  height: 10px;
  background: brown;
}
.pane2 {
  position: absolute;
  bottom: 80px;
  left: 220px;
  width: 70px;
  height: 10px;
  background: brown;
}
.pane3 {
  position: absolute;
  bottom: 100px;
  left: 100px;
  width: 70px;
  height: 10px;
  background: brown;
}
.pane4 {
  position: absolute;
  top: 110px;
  left: 40px;
  width: 20px;
  height: 10px;
  background: brown;
}
.control {
  display: flex;
}
.left, .right, .jump {
  border: 2px solid limegreen;
  width: 50px;
  height: 50px;
  border-radius: 20%;
  font-size: 50px;
  text-align: center;
  margin: 10px;
  user-select: none;
}
.jump {
  margin-left: 50px;
  }