.external {
  overflow: hidden;
    width: 100%;
    height: 810px;
}


.slower {
  transform: rotate(90deg) translateZ(-.2px) scale(1.1) translateX(0%) translateY(-5vh);
}
.slower1 {
  transform: rotate(90deg) translateZ(-.25px) scale(1.05) translateX(0%) translateY(8vh);
}
.slower2 {
  transform: rotate(90deg) translateZ(-.3px) scale(1.3) translateX(4%) translateY(2vh);
}
.slower-down {
  transform: rotate(90deg) translateZ(-.2px) scale(1.1) translateX(0%) translateY(16vh) ;
}
.faster {
  transform: rotate(90deg) translateZ(.15px) scale(0.8) translateX(0%) translateY(14vh) ;
}
.faster1 {
  transform: rotate(90deg) translateZ(.05px) scale(0.8) translateX(0%) translateY(-10vh) ;
}
.fastest {
  transform: rotate(90deg) translateZ(.22px) scale(0.7) translateX(-10vh) translateY(-15vh) ;
}
.vertical {
   transform: rotate(90deg) translateZ(-.15px) scale(1.15) translateX(0%) translateY(0%) ;
}
.last {
  transform: rotate(90deg) translateZ(-.2px) scale(1.1) translateX(5vh) translateY(-8vh) ;
}