CSS3 旋转代码备忘

.Aclose {
    -webkit-transition-property: all;
    -webkit-transition-duration: .3s;
    -moz-transition-property: all;
    -moz-transition-duration: .3s;
    transition-property: all;
    transition-duration: .3s;
}

.Aclose:hover {
    -moz-transform: rotate(-180deg);
    -o-transform: rotate(-180deg);
    -webkit-transform: rotate(-180deg);
    transform: rotate(-180deg);
}

.bg {
    width: 200px;
    height: 200px;
    position: absolute;
    left: 0;
    top: 0;
    background: url(../img/light.png);
    background-size: 100%;
    z-index: -1;
    -webkit-animation-name: scroll;
    -webkit-animation-duration: 5s;
    -webkit-animation-timing-function: linear;
    -webkit-animation-delay: 0;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-direction: normal;
    -webkit-animation-play-state: running;
    animation-name: scroll;
    animation-duration: 5s;
    animation-timing-function: linear;
    animation-delay: 0;
    animation-iteration-count: infinite;
    animation-direction: normal;
    animation-play-state: running;
}

Aclose，当鼠标移动到上面时旋转。

bg，自动一直旋转