.chassis{
  position:absolute;
  top: 357px;
  left: 0px;
  transform-style: preserve-3d;
}
.roue{
  /* clip-path: circle(50%); */
  border-radius: 50%;
  position: absolute;
  background-color: yellow;
  width: 72px;
  height: 72px;
}
.roueAvG{
  top: 0px;
  left: 0px;
  transform: translateZ(250px);
}
.roueArrG{
  top: 0px;
  left: 264px;
  transform: translateZ(250px);
}
.roueAvD{
  top: 0px;
  left: 0px;
  transform: translateZ(-1px);
}
.roueArrD{
  top: 0px;
  left: 264px;
  transform: translateZ(-1px);
}
.chenille{
  background-color: rgb(49, 49, 49);
  position: absolute;
}
.chenilleAvG {
  border-radius: 38px 0 0 38px;
  width: 38px;
  height: 76px;
  top: -2px;
  left: -3px;
  transform: translateZ(250px);
}
.chenilleArrG {
  border-radius: 0 38px 38px 0;
  width: 38px;
  height: 76px;
  top: -2px;
  left: calc(264px + 37px);
  transform: translateZ(250px);
}
.chenilleHAvG{
  top:-12px;
  left: 36px;
  clip-path: polygon(0px 9px, 133px 0px, 133px 3px, 0 12px);
  width: 133px;
  height: 12px;
  transform: translateZ(250px);
}
.chenilleHArrG{
  top:-12px;
  left: 169px;
  clip-path: polygon(0px 0px, 133px 9px, 133px 12px, 0 3px);
  width: 133px;
  height: 12px;
  transform: translateZ(250px);
}
.chenilleBG{
  top:72px;
  left: 36px;
  clip-path: polygon(0px 0px, 300px 0px, 300px 3px, 0 3px);
  width: 264px;
  height: 3px;
  transform: translateZ(250px);
}
.poulieG{
  /* clip-path: circle(50% at 50% 50%); */
  border-radius: 50%;
  background-color: rgb(124, 123, 123);
  width: 22px;
  height: 22px;
  position: absolute;
  top: -9px;
  left: 159px;
  transform: translateZ(250px);
}
/* chenille droite */
/*.chenilleAvD {
  clip-path: circle(50% at 100% 50%);
  width: 78px;
  height: 78px;
  top: -3px;
  left: -42px;
  transform: translateZ(-1px);
}
.chenilleArrD {
  clip-path: circle(50% at 0% 50%);
  width: 78px;
  height: 78px;
  top: -3px;
  left: calc(264px + 36px);
  transform: translateZ(-1px);
}*/
.chenilleHAvD{
  top:-12px;
  left: 36px;
  clip-path: polygon(0px 9px, 133px 0px, 133px 3px, 0 12px);
  width: 133px;
  height: 12px;
  transform: translateZ(-1px);
}
.chenilleHArrD{
  top:-12px;
  left: 169px;
  clip-path: polygon(0px 0px, 133px 9px, 133px 12px, 0 3px);
  width: 133px;
  height: 12px;
  transform: translateZ(-1px);
}
.chenilleBD{
  top:72px;
  left: 36px;
  clip-path: polygon(0px 0px, 300px 0px, 300px 3px, 0 3px);
  width: 264px;
  height: 3px;
  transform: translateZ(-1px);
}
.poulieD{
  clip-path: circle(50% at 50% 50%);
  background-color: rgb(124, 123, 123);
  width: 22px;
  height: 22px;
  position: absolute;
  top: -9px;
  left: 159px;
  transform: translateZ(-1px);
}

.railD{
  background-color: rgb(202, 202, 0);
  top: 16px;
  left: 36px;
  width: 264px;
  height: 56px;
  position: absolute;
}
.railG{
  background-color: rgb(224, 224, 0);
  top: 16px;
  left: 36px;
  width: 264px;
  height: 56px;
  position: absolute;
  transform: translateZ(249px);
}