css3 自动无限缩放
@-webkit-keyframes scaleDraw { 0% { -webkit-transform:scale(1); } 25% { -webkit-transform:scale(1.1); } 50% { -webkit-transform:scale(1); } 75% { -webkit-transform:scale(1.1); } } #drawCon1{ -webkit-animation-name: scaleDraw; -webkit-animation-timing-function: ease-in-out; -webkit-animation-iteration-count: infinite; -webkit-animation-duration: 8s; -webkit-animation-direction: alternate; }