css3 手写正方体实现3D旋转

html: bg1 bg2 bg3 bg4 css: .container { position: absolute; width: 0; height: 0; top: 50%; left: 50%; margin-left: -50px; margin-top: -50px; transform-style: preserve-3d; animation: moves 3.5s linear infinite; } .back,.prev { position: absolute; width: 100px; height: 10