.spinner div{width:8px;height:8px;position:absolute;left:-20px;top:10px;background-color:#003f7d;border-radius:50%;animation:move 3s infinite cubic-bezier(.2,.64,.81,.23)}.spinner div:nth-child(2){animation-delay:100ms}.spinner div:nth-child(3){animation-delay:200ms}.spinner div:nth-child(4){animation-delay:300ms}@keyframes move{0%{left:0%}75%{left:100%}100%{left:100%}}