和任務六做完相比較，并沒有任何區別啊

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????????????/*任務六、點擊綜略圖，切換背景圖*/
????????????/*背景圖從左向右出現*/
????????????.slideLeft:target{
?????????????z-index:?100;
?????????????-webkit-animation-name:?slideLeft;
?????????????-webkit-animation-duration:?1s;
?????????????-webkit-animation-iteration-count:?1;
?????????????-moz-animation-name:?slideLeft;
?????????????-moz-animation-duration:?1s;
?????????????-moz-animation-iteration-count:?1;
?????????????-ms-animation-name:?slideLeft;
?????????????-ms-animation-duration:?1s;
?????????????-ms-animation-iteration-count:?1;
?????????????-o-animation-name:?slideLeft;
?????????????-o-animation-duration:?1s;
?????????????-o-animation-iteration-count:?1;
?????????????animation-name:?slideLeft;
?????????????animation-duration:?1s;
?????????????animation-iteration-count:?1;
????????????}
????????????/*背景圖從下向上出現*/
???????????.slideBottom:target{
?????????????z-index:?100;
????????????
?????????????-webkit-animation-name:?slideBottom;
?????????????-webkit-animation-duration:?1s;
?????????????-webkit-animation-iteration-count:?1;
?????????????-moz-animation-name:?slideBottom;
?????????????-moz-animation-duration:?1s;
?????????????-moz-animation-iteration-count:?1;
?????????????-ms-animation-name:?slideBottom;
?????????????-ms-animation-duration:?1s;
?????????????-ms-animation-iteration-count:?1;
?????????????-o-animation-name:?slideBottom;
?????????????-o-animation-duration:?1s;
?????????????-o-animation-iteration-count:?1;
????????????animation-name:?slideBottom;
?????????????animation-duration:?1s;
?????????????animation-iteration-count:?1;
????????????}
????????????/*背景圖由小到大出現*/
????????????.zoomIn:target{
?????????????z-index:?100;
?????????????-webkit-animation-name:?zoomIn;
?????????????-webkit-animation-duration:?1s;
?????????????-webkit-animation-iteration-count:?1;
?????????????-moz-animation-name:?zoomIn;
?????????????-moz-animation-duration:?1s;
?????????????-moz-animation-iteration-count:?1;
?????????????-ms-animation-name:?zoomIn;
?????????????-ms-animation-duration:?1s;
?????????????-ms-animation-iteration-count:?1;
?????????????-o-animation-name:?zoomIn;
?????????????-o-animation-duration:?1s;
?????????????-o-animation-iteration-count:?1;
?????????????animation-name:?zoomIn;
?????????????animation-duration:?1s;
?????????????animation-iteration-count:?1;
????????????}
????????????
????????????/*背景圖由大到小出現*/
????????????.zoomOut:target{
?????????????z-index:?100;
?????????????-webkit-animation-name:?zoomOut;
?????????????-webkit-animation-duration:?1s;
?????????????-webkit-animation-iteration-count:?1;
?????????????-moz-animation-name:?zoomOut;
?????????????-moz-animation-duration:?1s;
?????????????-moz-animation-iteration-count:?1;
?????????????-ms-animation-name:?zoomOut;
?????????????-ms-animation-duration:?1s;
?????????????-ms-animation-iteration-count:?1;
?????????????-o-animation-name:?zoomOut;
?????????????-o-animation-duration:?1s;
?????????????-o-animation-iteration-count:?1;
?????????????animation-name:?zoomOut;
?????????????animation-duration:?1s;
?????????????animation-iteration-count:?1;
????????????}
????????????
????????????/*背景圖旋轉出現*/
????????????.rotate:target{
?????????????z-index:?100;
?????????????-webkit-animation-name:?rotate;
?????????????-webkit-animation-duration:?1s;
?????????????-webkit-animation-iteration-count:?1;
?????????????-moz-animation-name:?rotate;
?????????????-moz-animation-duration:?1s;
?????????????-moz-animation-iteration-count:?1;
?????????????-ms-animation-name:?rotate;
?????????????-ms-animation-duration:?1s;
?????????????-ms-animation-iteration-count:?1;
?????????????-o-animation-name:?rotate;
?????????????-o-animation-duration:?1s;
?????????????-o-animation-iteration-count:?1;
?????????????animation-name:?rotate;
?????????????animation-duration:?1s;
?????????????animation-iteration-count:?1;
????????????}
????????????/*任務七、設置不顯示的背景圖層級*/
????????????/*?Not?Target?*/
????????????
?????????????.bg:not(:target){
?????????????-webkit-animation-name:?notTarget;
?????????????-webkit-animation-duration:?1s;
?????????????-webkit-animation-iteration-count:?1;
?????????????-moz-animation-name:?notTarget;
?????????????-moz-animation-duration:?1s;
?????????????-moz-animation-iteration-count:?1;
?????????????-ms-animation-name:?notTarget;
?????????????-ms-animation-duration:?1s;
?????????????-ms-animation-iteration-count:?1;
?????????????-o-animation-name:?notTarget;
?????????????-o-animation-duration:?1s;
?????????????-o-animation-iteration-count:?1;
?????????????animation-name:?notTarget;
?????????????animation-duration:?1s;
?????????????animation-iteration-count:?1;
????????????}