aniTest.scss

.area{margin-bottom:10px;border:1px solid #ddd;height:250px;position: relative}
.obj,.obj2,.obj3,.obj4{background:gold;width:100px;height:100px}
.obj3{-webkit-transform:translate3d(100px,80px,0);}
.obj3.go{-webkit-animation: move1 2s infinite}
.obj4{-webkit-transform:translate3d(100px,80px,0);}
@-webkit-keyframes move1 {
  0%   {-webkit-transform: translate3d(100px, 80px, 0);}
  50%  {-webkit-transform: translate3d(700px, 80px, 0);}
  100% {-webkit-transform: translate3d(100px, 80px, 0);}
}
button{
  box-shadow:0 1px 5px #333;position:absolute;left:10px;top:50%;margin-top:-25px;height:50px;
  border:2px solid #b6971d;overflow: visible;border-radius:10px;background:none;padding:10px;
  font-size:15px;cursor:pointer
}