.sk-wave{margin:40px auto;width:50px;height:40px;text-align:center;font-size:10px}.sk-wave .sk-rect{background-color:#333;height:100%;width:6px;display:inline-block;animation:sk-waveStretchDelay 1.2s infinite ease-in-out}.sk-wave .sk-rect1{animation-delay:-1.2s}.sk-wave .sk-rect2{animation-delay:-1.1s}.sk-wave .sk-rect3{animation-delay:-1s}.sk-wave .sk-rect4{animation-delay:-.9s}.sk-wave .sk-rect5{animation-delay:-.8s}@keyframes sk-waveStretchDelay{0%,40%,to{transform:scaleY(.4)}20%{transform:scaleY(1)}}