.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:;

    top:;

    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:;

    -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:;

    animation-iteration-count: infinite;

    animation-direction: normal;

    animation-play-state: running;

}