我＆＃39; M尝试添加juizy slideshow我的网站页面，但我需要完全了解它＆＃39;为了所做出它的动画（次滑动），用我自己的海关动画同步我会想要添加到页面中。
除了第一个链接中的简短技术说明，here还有更多详细信息（但是法语和来自* 1的可撤销代码与作者所做的讨论略有不同可下载版本的一些改进。）
<body>
<span id="sl_play" class="sl_command"> </span>
<span id="sl_pause" class="sl_command"> </span>
<span id="sl_i1" class="sl_command sl_i"> </span>
<span id="sl_i2" class="sl_command sl_i"> </span>
<span id="sl_i3" class="sl_command sl_i"> </span>
<span id="sl_i4" class="sl_command sl_i"> </span>
<section id="slideshow">
<a class="commands prev commands1" href="#sl_i4" title="Go to last slide"><</a>
<a class="commands next commands1" href="#sl_i2" title="Go to 2nd slide">></a>
<a class="commands prev commands2" href="#sl_i1" title="Go to 1rst slide"><</a>
<a class="commands next commands2" href="#sl_i3" title="Go to 3rd slide">></a>
<a class="commands prev commands3" href="#sl_i2" title="Go to 2nd slide"><</a>
<a class="commands next commands3" href="#sl_i4" title="Go to 4th slide">></a>
<a class="commands prev commands4" href="#sl_i3" title="Go to 3rd slide"><</a>
<a class="commands next commands4" href="#sl_i1" title="Go to first slide">></a>
<a class="play_commands pause" href="#sl_pause" title="Maintain paused">Pause</a>
<a class="play_commands play" href="#sl_play" title="Play the animation">Play</a>
<div class="container">
<div class="c_slider"></div>
<div class="slider">
<figure>
<img src="img/dummy-640x310-1.jpg" alt="" width="640" height="310" />
<figcaption>The mirror of soul</figcaption>
</figure><!--
--><figure>
<img src="img/dummy-640x310-2.jpg" alt="" width="640" height="310" />
<figcaption>Let's cross that bridge when we come to it</figcaption>
</figure><!--
--><figure>
<img src="img/dummy-640x310-3.jpg" alt="" width="640" height="310" />
<figcaption>Sushi<em>(do)</em> time</figcaption>
</figure><!--
--><figure>
<img src="img/dummy-640x310-4.jpg" alt="" width="640" height="310" />
<figcaption>Waking Life</figcaption>
</figure>
</div>
</div>
<span id="timeline"></span>
<ul class="dots_commands"><!--
--><li><a title="Show slide 1" href="#sl_i1">Slide 1</a></li><!--
--><li><a title="Show slide 2" href="#sl_i2">Slide 2</a></li><!--
--><li><a title="Show slide 3" href="#sl_i3">Slide 3</a></li><!--
--><li><a title="Show slide 4" href="#sl_i4">Slide 4</a></li>
</ul>
</section>
</body>
这是它的样式表代码：
#slideshow {
position: relative;
width: 640px;
height: 310px;
padding: 15px;
border: 1px solid #ddd;
margin: 0 auto 2em;
background: #FFF;
background: -webkit-linear-gradient(#FFF, #FFF 20%, #EEE 80%, #DDD);
background: -moz-linear-gradient(#FFF, #FFF 20%, #EEE 80%, #DDD);
background: -ms-linear-gradient(#FFF, #FFF 20%, #EEE 80%, #DDD);
background: -o-linear-gradient(#FFF, #FFF 20%, #EEE 80%, #DDD);
background: linear-gradient(#FFF, #FFF 20%, #EEE 80%, #DDD);
-webkit-border-radius: 2px 2px 2px 2px;
-moz-border-radius: 2px 2px 2px 2px;
border-radius: 2px 2px 2px 2px;
-webkit-box-shadow: 0 0 3px rgba(0,0,0, 0.2);
-moz-box-shadow: 0 0 3px rgba(0,0,0, 0.2);
box-shadow: 0 0 3px rgba(0,0,0, 0.2);
}
/* Here are some other rules for the #timeline and .dots_commands that i removed to make shorter this code */
/* play/pause commands */
.play_commands {
position: absolute;
width: 22px; height: 22px;
top: 25px; right: 25px;
z-index: 10;
text-indent: -9999px;
border:0 none;
opacity: 0;
-webkit-transition: opacity 1s, right 1s;
-moz-transition: opacity 1s, right 1s;
transition: opacity 1s, right 1s;
}
.play { right: 55px; cursor: default; }
.pause:hover { border:0 none; }
.play_commands:focus { outline:0; }
#slideshow:hover .pause,
#sl_play:target ~ #slideshow:hover .pause,
.play_commands:focus {
opacity: 1;
}
.sl_command:target ~ #slideshow:hover .pause,
#sl_pause:target ~ #slideshow:hover .pause {
opacity: 0;
}
.pause:after,
.pause:before {
position: absolute;
display: block;
content: " ";
top:0;
width:38%;
height: 22px;
background: #fff;
background: rgba(255,255,255,0.5);
}
.pause:after {
right:0;
}
.pause:before {
left:0;
}
.play {
width: 1px;
height: 1px;
border-top: 10px solid transparent;
border-left: 20px solid #fff;
border-left: 20px solid rgba(255,255,255,0.5);
border-bottom: 10px solid transparent;
opacity: 0;
}
.play:hover,
.play:focus {
border-bottom: 10px solid transparent;
}
#slideshow .container {
position:relative;
width: 640px;
height: 310px;
overflow: hidden;
}
/* timeline base */
#slideshow .container:after {
position:absolute;
bottom: 0; left:0;
content: " ";
background: #999;
width: 100%;
height: 1px;
}
@-webkit-keyframes slider {
0%, 20%, 100% { left: 0 }
25%, 45% { left: -100% }
50%, 70% { left: -200% }
75%, 95% { left: -300% }
}
@-moz-keyframes slider {
0%, 20%, 100% { left: 0 }
25%, 45% { left: -100% }
50%, 70% { left: -200% }
75%, 95% { left: -300% }
}
@keyframes slider {
0%, 20%, 100% { left: 0 }
25%, 45% { left: -100% }
50%, 70% { left: -200% }
75%, 95% { left: -300% }
}
#slideshow .slider {
position: absolute;
left:0; top:0;
width: 400%;
height: 310px;
-webkit-animation: slider 32s infinite;
-moz-animation: slider 32s infinite;
animation: slider 32s infinite;
}
.sl_i:target ~ #slideshow .slider {
-webkit-transition: left 1s;
-moz-transition: left 1s;
transition: left 1s;
}
.sl_command:target ~ #slideshow .slider {
-webkit-transition: opacity 1s;
-moz-transition: opacity 1s;
transition: opacity 1s;
}
#slideshow .c_slider {
position: absolute;
left:0; top:0;
width: 400%;
height: 310px;
background: url(img/dummy-640x310-1.jpg) 0 0 no-repeat, url(img/dummy-640x310-2.jpg) 640px 0 no-repeat, url(img/dummy-640x310-3.jpg) 1280px 0 no-repeat, url(img/dummy-640x310-4.jpg) 1920px 0 no-repeat;
}
.sl_i:target ~ #slideshow .c_slider {
-webkit-transition: background 1s;
-moz-transition: background 1s;
transition: background 1s;
}
/* need a stop ! */
/* actions when target ! */
.sl_command { display: none; }
.sl_command:target ~ #slideshow .slider,
.sl_command:target ~ #slideshow figure:after,
.sl_command:target ~ #slideshow figcaption,
.sl_command:target ~ #slideshow #timeline,
.sl_command:target ~ #slideshow .dots_commands li:first-child a:after {
-webkit-animation-play-state: paused;
-moz-animation-play-state: paused;
animation-play-state: paused;
}
#sl_play:target ~ #slideshow .slider,
#sl_play:target ~ #slideshow figure:after,
#sl_play:target ~ #slideshow figcaption,
#sl_play:target ~ #slideshow #timeline,
#sl_play:target ~ #slideshow .dots_commands li:first-child a:after {
-webkit-animation-play-state: running;
-moz-animation-play-state: running;
animation-play-state: running;
}
.sl_command:target ~ #slideshow .pause { opacity:0; }
.sl_command:target ~ #slideshow .play { opacity:1; right: 25px; cursor: pointer; }
#sl_play:target ~ #slideshow .pause { opacity:0; }
#sl_play:target ~ #slideshow .play { opacity:0; right: 55px; cursor: default;}
.sl_i:target ~ #slideshow .slider { visibility: hidden }
.sl_i:target ~ #slideshow .slider figcaption { visibility: hidden }
.sl_i:target ~ #slideshow .dots_commands li:first-child a:after { display:none; }
.sl_i:target ~ #slideshow .dots_commands li:first-child a:before { display:block; }}
#sl_i1:target ~ #slideshow .commands { display: none; }
#sl_i1:target ~ #slideshow .commands1 { display: block; }
#sl_i1:target ~ #slideshow .c_slider { background-position: 0 0, 640px 0, 1280px 0, 1920px 0; }
#sl_i1:target ~ #slideshow .dots_commands li:first-child a:before { left:0; }
#sl_i2:target ~ #slideshow .commands { display: none; }
#sl_i2:target ~ #slideshow .commands2 { display: block; }
#sl_i2:target ~ #slideshow .c_slider { background-position: -640px 0, 0 0, 640px 0, 1280px 0; }
#sl_i2:target ~ #slideshow .dots_commands li:first-child a:before { left:18px; }
#sl_i3:target ~ #slideshow .commands { display: none; }
#sl_i3:target ~ #slideshow .commands3 { display: block; }
#sl_i3:target ~ #slideshow .c_slider { background-position: -1280px 0, -640px 0, 0 0, 640px 0; }
#sl_i3:target ~ #slideshow .dots_commands li:first-child a:before { left:36px; }
#sl_i4:target ~ #slideshow .commands { display: none; }
#sl_i4:target ~ #slideshow .commands4 { display: block; }
#sl_i4:target ~ #slideshow .c_slider { background-position: -1920px 0, -1280px 0, -640px 0, 0 0; }
#sl_i4:target ~ #slideshow .dots_commands li:first-child a:before { left:54px; }
我无法从之前的样式表中理解的选择器组合取决于此规则：
#slideshow:hover .pause,
#sl_play:target ~ #slideshow:hover .pause,
.play_commands:focus {
opacity: 1;
}
是否第一组合#slideshow:hover .pause转换为＆＃34;选择与类名暂停能与幻灯片＆＃34的ID的元素的后代的所有元素;？
#sl_play:target ~ #slideshow:hover .pause表示什么？
------------------编辑后Brian Stephens answer ------------------- ---
对于问题2 ）我仍然无法理解悬停状态必须前面带有:target伪类的ID的含义，一般来说， CSS的优先级有关的代码元素的配置，但在这种情况下它看起来＆＃39; S约事件，而：是否表示的超级链接靶向#sl_play必须被激活，然后再应该发生上悬停#slideshow规则可能有效吗？如果优先级是关于事件的，那么代码中的优先级就不再重要了吗？
答案 0 :(得分：4)
<强>问题＃1 ：是否<github.yaa110.widget.LinearLayoutButtonsHolder
android:id="@+id/adapter"
android:layout_width="wrap_content"
android:orientation="vertical"
android:layout_centerInParent="true"
android:layout_height="wrap_content">
<Button
android:text="Long text for test"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:id="@+id/opt1"/>
<Button
android:text="2"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:id="@+id/opt2" />
<Button
android:text="3"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:id="@+id/opt3" />
<Button
android:text="4"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:id="@+id/opt4" />
<Button
android:text="5"
android:layout_width="wrap_content"
android:layout_height="48dp"
android:id="@+id/opt5" />
</github.yaa110.widget.LinearLayoutButtonsHolder>
的第一组合翻译到＆＃34;选择与类名暂停能与幻灯片＆＃34的ID的元素的后代的所有元素;
答案：是的，它是一个后代选择器，它没有指定它必须是一个孩子;它可能会进一步下降。请记住，它还指定了悬停状态。
问题＃2 ：#slideshow:hover .pause表示什么？
答案：这使用了一般的兄弟连接器。 #sl_play:target ~ #slideshow:hover .pause必须以#slideshow:hover开头，但不一定是立即。它一定是后来的兄弟姐妹。
这是一篇很好的文章，解释了儿童和兄弟选择器的所有变体：CSS Tricks