css3基础-切换背景图像综合练习题

https://www.imooc.com/code/1882

任务
1，给每个列表定义不同的背景颜色
提示：使用结构伪类选择器:nth-of-type()

2，设置缩略图外形效果
提示：使用伪元素::after制作圆形效果

3、给每个缩略图设置不同的图片
提示：使用伪结构选择器:nth-of-type()，并且配合::after

4、给每个缩略图添加透明度蒙板效果
提示：使用伪类选择器::before给缩略图添加蒙板效果

5、鼠标悬浮在缩略图上时，修改缩略图上蒙板的透明度
提示：通过:hover和::before配合修改opacity的值为0

6、点击缩略图，切换背景图片
提示：通过目标选择器:target进行背景图片的切换

7、控制不是被点击图片的层级大小，让其不显示
提示：通过“否定选择器:not()”和“目标选择器:target”来控制不是被切换的背景图像不显示

<!DOCTYPE HTML>
<htmllang="en-US">
    <head>
        <meta charset="UTF-8">
        <title>CSS3 Full Background Slider </title>
        <style type="text/css">
            @importurl("http://www.w3cplus.com/demo/css3/base.css");
            @importurl("http://fonts.googleapis.com/css?family=Yesteryear");
            html,body {
            height: 100%;
            }
            /*设置背景图片全屏显示，并且居中*/
            img.bg {
            min-height: 100%;
            min-width: 1024px;
            width: 100%;
            height: auto !important;
            height: 100%;
            position: fixed;
            top: 0;
            left: 0;
            z-index:1;
              -webkit-transform: translateX(-0);
              -moz-transform: translateX(-0);
              -o-transform: translateX(-0);
              -ms-transform: translateX(-0);
            }
            /*设置背景图片从左向右移入显示的动画效果*/
            /* Slide Left */

            @-webkit-keyframes 'slideLeft' {
                0% { left: -500px; }
                100% { left: 0; }
            }
            @-moz-keyframes 'slideLeft' {
                0% { left: -500px; }
                100% { left: 0; }
            }
            @-o-keyframes 'slideLeft' {
                0% { left: -500px; }
                100% { left: 0; }
            }
            @-ms-keyframes 'slideLeft' {
                0% { left: -500px; }
                100% { left: 0; }
            }
            @keyframes 'slideLeft' {
                0% { left: -500px; }
                100% { left: 0; }
            }
            /*设置背景图像从底部向顶部移入的动画效果*/
             /* Slide Bottom */

            @-webkit-keyframes 'slideBottom' {
                0% { top: 350px; }
                100% { top: 0; }
            }
            @-moz-keyframes 'slideBottom' {
                0% { top: 350px; }
                100% { top: 0; }
            }
            @-ms-keyframes 'slideBottom' {
                0% { top: 350px; }
                100% { top: 0; }
            }
            @-o-keyframes 'slideBottom' {
                0% { top: 350px; }
                100% { top: 0; }
            }
            @keyframes 'slideBottom' {
                0% { top: 350px; }
                100% { top: 0; }
            }
            /*设置背景图片由小到大放大动画效果*/
            /* Zoom In */

            @-webkit-keyframes 'zoomIn' {
                0% { -webkit-transform: scale(0.1); }
                100% { -webkit-transform: none; }
            }
            @-moz-keyframes 'zoomIn' {
                0% { -moz-transform: scale(0.1); }
                100% { -moz-transform: none; }
            }
            @-ms-keyframes 'zoomIn' {
                0% { -ms-transform: scale(0.1); }
                100% { -ms-transform: none; }
            }
            @-o-keyframes 'zoomIn' {
                0% { -o-transform: scale(0.1); }
                100% { -o-transform: none; }
            }
            @keyframes 'zoomIn' {
                0% { transform: scale(0.1); }
                100% { transform: none; }
            }
            /*设置背景图像由大到小缩小动画效果*/
            /* Zoom Out */

            @-webkit-keyframes 'zoomOut' {
                0% { -webkit-transform: scale(2); }
                100% { -webkit-transform: none; }
            }
            @-moz-keyframes 'zoomOut' {
                0% { -moz-transform: scale(2); }
                100% { -moz-transform: none; }
            }
            @-ms-keyframes 'zoomOut' {
                0% { -ms-transform: scale(2); }
                100% { -ms-transform: none; }
            }
            @-o-keyframes 'zoomOut' {
                0% { -o-transform: scale(2); }
                100% { -o-transform: none; }
            }
            @keyframes 'zoomOut' {
                0% { transform: scale(2); }
                100% { transform: none; }
            }
            /*背景图像旋转出现动画效果*/
            /* Rotate */

            @-webkit-keyframes 'rotate' {
                0% { -webkit-transform: rotate(-360deg) scale(0.1); }
                100% { -webkit-transform: none; }
            }
            @-moz-keyframes 'rotate' {
                0% { -moz-transform: rotate(-360deg) scale(0.1); }
                100% { -moz-transform: none; }
            }
            @-ms-keyframes 'rotate' {
                0% { -ms-transform: rotate(-360deg) scale(0.1); }
                100% { -ms-transform: none; }
            }
            @-o-keyframes 'rotate' {
                0% { -o-transform: rotate(-360deg) scale(0.1); }
                100% { -o-transform: none; }
            }
            @keyframes 'rotate' {
                0% { transform: rotate(-360deg) scale(0.1); }
                100% { transform: none; }
            }
            /*设置背景图像不显示动画效果*/
            @-webkit-keyframes 'notTarget' {
                0% { z-index: 75; }
                100% { z-index: 75; }
            }
            @-moz-keyframes 'notTarget' {
                0% { z-index: 75; }
                100% { z-index: 75; }
            }
            @-ms-keyframes 'notTarget' {
                0% { z-index: 75; }
                100% { z-index: 75; }
            }
            @-o-keyframes 'notTarget' {
                0% { z-index: 75; }
                100% { z-index: 75; }
            }
            @keyframes 'notTarget' {
                0% { z-index: 75; }
                100% { z-index: 75; }
            }



            .slider {
            position: absolute;
            width: 100%;
            text-align: center;
            z-index: 9999;
            bottom: 100px;
            }
            .slider li {
            display: inline-block;
            width: 170px;
            height: 130px;
            margin-right: 15px;
            }
            .slider a {
            display: inline-block;
            width: 170px;
            padding-top: 70px;
            padding-bottom: 20px;
            position: relative;
            cursor: pointer;
            border: 2px solid #fff;
            border-radius: 5px;
            vertical-align: top;
            color: #fff;
            text-decoration: none;
            font-size: 22px;
            font-family: 'Yesteryear', cursive;
            text-shadow: -1px -1px 1px rgba(0, 0, 0, 0.8),-2px -2px 1px rgba(0, 0, 0, 0.3),-3px -3px 1px rgba(0, 0, 0, 0.3);
            }
            /*任务一、设置不同列表的背景色*/
            .slider li:nth-of-type(1) a{
            background-color: #02646e;
            }
            .slider li:nth-of-type(2) a{
            background-color: #eb0837;
            }
            .slider li:nth-of-type(3) a{
            background-color: #67b374;
            }    
            .slider li:nth-of-type(4) a{
            background-color: #e6674a;
            }    
            .slider li:nth-of-type(5) a{
            background-color: #e61061;
            }
            /*任务二、设置缩略图形状*/
            a::after{
            content:"";
            display: block;
            height: 120px;
            width: 120px;
            border: 5px solid #fff;
            border-radius: 50%;
            position: absolute;
            left: 50%;
            margin-left: -60px;
            z-index: 9999;
            top: -80px;
            }
            /*任务三、设置缩略图背景图像*/
            li:nth-of-type(1) a::after{
            background: url(https://img4.mukewang.com/szimg/59b8a486000107fb05400300.jpg) no-repeat center;
            }
            li:nth-of-type(2) a:after{
            background: url(https://img1.mukewang.com/szimg/5b0cb5df00016e5405400300.jpg) no-repeat center;
            }
            li:nth-of-type(3) a:after{
            background: url(https://img2.mukewang.com/szimg/5b2a29d50001bf4605400300.jpg) no-repeat center;
            }
            li:nth-of-type(4) a:after{
            background: url(https://img1.mukewang.com/szimg/5a9ca4e80001786305400300.jpg) no-repeat center;
            }
            li:nth-of-type(5) a:after{
            background: url(https://img4.mukewang.com/szimg/5ac2dfe100014a9005400300.jpg) no-repeat center;
            }
            /*任务四、给缩略图添加蒙板效果*/
            a::before{
            content:"";
            display: block;
            height: 120px;
            width: 120px;
            border: 5px solid #fff;
            border-radius: 50%;
            position: absolute;
            left: 50%;
            margin-left: -60px;
            z-index: 99999;
            top: -80px;
            background: rgba(0,0,0,0.3);
            }
            /*任务五、鼠标悬浮时，修改缩略图蒙板透明度*/
            a:hover:before{
            opacity:0;
            }
            /*任务六、点击综略图，切换背景图*/
            /*背景图从左向右出现*/
            #bg1: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;
            }
            /*背景图从下向上出现*/
            #bg2: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;
            }
            /*背景图由小到大出现*/
            #bg3: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;
            }

            /*背景图由大到小出现*/
            #bg4: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;
            }

            /*背景图旋转出现*/
            #bg5: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;
            }
            /*任务七、设置不显示的背景图层级*/
            /* 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;
            }
        </style>
    </head>
    <body>
        <div class="slider">
            <ul class="clearfix">
                <li><a href="#bg1">Hipster Fashion Haircut </a></li>
                <li><a href="#bg2">Cloud Computing Services &amp; Consulting</a></li>
                <li><a href="#bg3">My haire is sooo fantastic!</a></li>
                <li><a href="#bg4">Eat healthy &amp; excersice!</a></li>
                <li><a href="#bg5">Lips so kissable I could die ...</a></li>
            </ul>
        </div>
        <img src="https://img4.mukewang.com/szimg/59b8a486000107fb05400300.jpg" alt="" class="bg slideLeft" id="bg1" />
        <img src="https://img1.mukewang.com/szimg/5b0cb5df00016e5405400300.jpg" alt="" class="bg slideBottom" id="bg2" />
        <img src="https://img2.mukewang.com/szimg/5b2a29d50001bf4605400300.jpg" alt="" class="bg zoomIn" id="bg3" />
        <img src="https://img1.mukewang.com/szimg/5a9ca4e80001786305400300.jpg" alt="" class="bg zoomOut" id="bg4" />
        <img src="https://img4.mukewang.com/szimg/5ac2dfe100014a9005400300.jpg" alt="" class="bg rotate" id="bg5" />
    </body>
</html>