无限自动旋转

.autoanimate {
    -webkit-transition-property: -webkit-transform;
    -webkit-transition-duration: 1s;
    -moz-transition-property: -moz-transform;
    -moz-transition-duration: 1s;
    -webkit-animation: rotate 3s linear infinite;
    -moz-animation: rotate 3s linear infinite;
    -o-animation: rotate 3s linear infinite;
    animation: rotate 3s linear infinite;}
    @-webkit-keyframes rotate{from{-webkit-transform: rotate(0deg)}
        to{-webkit-transform: rotate(360deg)}
    }
    @-moz-keyframes rotate{from{-moz-transform: rotate(0deg)}
        to{-moz-transform: rotate(359deg)}
    }
    @-o-keyframes rotate{from{-o-transform: rotate(0deg)}
        to{-o-transform: rotate(359deg)}
    }
    @keyframes rotate{from{transform: rotate(0deg)}
        to{transform: rotate(359deg)}
}