使用纯CSS3实现时间轴切换焦点图实例代码

这是一款基于jQuery和CSS3的焦点图动画插件，插件非常迷你，功能也比较简单，它的特点是图片切换按钮类似一条时间轴，点击时间轴的圆圈即可切换到相应的图片。点击切换按钮时，按钮会出现渐隐渐显的发光特效，图片切换过程中整张图片过渡的效果非常柔和，并且图片描述也相应以动画的方式显示在图片上，是一款非常棒的CSS3图片切换组件。

在线演示源码下载

HTML代码：

<p id="gal">
  <nav class="galnav">
    <ul>
		<li><input type="radio" name="btn" value="one" checked="checked" />
		<label for="btn"></label>
        <figure>
          <img src="images/01_Fabio_Basile.jpg" />
          <figcaption>
            <h4>Fabio Basile</h4>
              <nav role=&#39;navigation&#39;>
                <p>iPhone 6 Infinity</p>
		<ul>
			<li><a href="#" class="entypo-dribbble">
			</a></li>
			<li><a href="#" class="entypo-twitter"></a>
			</li>
		</ul>
              </nav>  
          </figcaption>
        </figure>
      	</li>
		<li><input type="radio" name="btn" value="two" /> <label for="btn">
		</label>
         <figure class="entypo-forward">
          <img src="images/08_Brian_Miller.jpg" />
          <figcaption>
            <h4>Brian Miller</h4>
              <nav role=&#39;navigation&#39;>
                <p>TypeTi.me</p>
		<ul>
			<li><a href="#" class="entypo-dribbble"></a>
			</li>
			<li><a href="#" class="entypo-twitter"></a>
			</li>
		</ul>
              </nav>  
          </figcaption>
        </figure>
      	</li>
		<li><input type="radio" name="btn" value="three" /> <label for="btn">
		</label>
        <figure class="entypo-forward">
          <img src="images/05_Nicolas_Quod.jpg" />
          <figcaption>
            <h4>Nicolas Quod</h4>
              <nav role=&#39;navigation&#39;>
                <p>Iphone 6 - Notification - iOS 7</p>
		<ul>
			<li>
			<a href="#" class="entypo-dribbble">
			</a></li>
			<li>
			<a href="#" class="entypo-twitter">
			</a></li>
		</ul>
              </nav>  
          </figcaption>
        </figure>
      	</li>
		<li><input type="radio" name="btn" value="four" /> <label for="btn">
		</label>
         <figure class="entypo-forward">
          <img src="images/04_Joffrey.jpg" />
          <figcaption>
            <h4>Joffrey</h4>
              <nav role=&#39;navigation&#39;>
                <p>功能齐全</p>
		<ul>
			<li><a href="#" class="entypo-dribbble">
			</a></li>
			<li><a href="#" class="entypo-twitter">
			</a></li>
		</ul>
              </nav>  
          </figcaption>
        </figure>
      	</li>
		<li><input type="radio" name="btn" value="five" /> <label for="btn">
		</label>
         <figure class="entypo-forward">
          <img src="images/09_Jared_Long.jpg" />
          <figcaption>
            <h4>Jared Long</h4>
              <nav role=&#39;navigation&#39;>
                <p>Don&#39;t drop your iPhone Infinity</p>
		<ul>
			<li>
			<a href="#" class="entypo-dribbble">
			</a></li>
			<li>
			<a href="#" class="entypo-behance">
			</a></li>
		</ul>
              </nav>  
          </figcaption>
        </figure>
      	</li>
		<li><input type="radio" name="btn" value="six" /> <label for="btn">
		</label>
         <figure class="entypo-forward">
          <img src="images/02_Charles_Treece.jpg" />
          <figcaption>
            <h4>Charles Treece</h4>
              <nav role=&#39;navigation&#39;>
                <p>iPhone 6 Infinity Side Status Bar</p>
		<ul>
			<li>
			<a href="#" class="entypo-dribbble">
			</a></li>
			<li>
			<a href="#" class="entypo-twitter">
			</a></li>
		</ul>
              </nav>  
          </figcaption>
        </figure>
      	</li>
	</ul>
  </nav>
</p>

CSS代码

因为这款焦点图插件并没有使用任何JS代码，所以，图片切换功能全部依赖CSS3相关特性，具体的CSS代码如下：

#gal {
  position:relative;
  width:600px;
  height:300px;
  margin:0 auto;
  top:100px;
  background:white;
  -webkit-box-shadow:0px 0px 0px 10px white,
             5px 5px 0px 10px rgba(0,0,0,0.1);
  -moz-box-shadow:0px 0px 0px 10px white,
             5px 5px 0px 10px rgba(0,0,0,0.1);
  box-shadow:0px 0px 0px 10px white,
             5px 5px 0px 10px rgba(0,0,0,0.1);
  -webkit-transform:translate3d(0, 0, 0);
  -moz-transform:   translate3d(0, 0, 0);
  -ms-transform:    translate3d(0, 0, 0);
  -o-transform:     translate3d(0, 0, 0);
  transform:        translate3d(0, 0, 0);
}
#gal:after {
  content:'';
  position:absolute;
  bottom:24px;
  right:0;
  left:0;
  width:100%;
  height:1px;
  background:rgba(255,255,255,0.35);
  z-index:3;
}
#gal ul {list-style-type:none;}
input[type="radio"], input[type="radio"] + label {
  position:absolute;
  bottom:15px;
  display:block;
  width:20px;
  height:20px;
  -webkit-border-radius:50%;
  -moz-border-radius:50%;
  border-radius:50%;
  cursor:pointer;
}
input[type="radio"] {
  opacity:0;
  z-index:9;
}
input[value="one"], input[value="one"] + label {left:20px;}
input[value="two"], input[value="two"] + label {left:128px;}
input[value="three"], input[value="three"] + label {left:236px;}
input[value="four"], input[value="four"] + label {left:344px;}
input[value="five"], input[value="five"] + label {left:452px;}
input[value="six"], input[value="six"] + label {right:20px;}
input[type="radio"] + label {
  background:rgba(255,255,255,0.35);
  z-index:7;
  -webkit-box-shadow:0px 0px 0px 0px rgba(255,255,255,0.15);
  -moz-box-shadow:0px 0px 0px 0px rgba(255,255,255,0.15);
  box-shadow:0px 0px 0px 0px rgba(255,255,255,0.15);
  -webkit-transition:all .3s;
  -moz-transition:all .3s;
  -o-transition:all .3s;
  transition:all .3s;
}
[class*="entypo-"]:before {
  position:absolute;
  font-family: 'entypo', sans-serif;
}
figure[class*="entypo-"]:before {
  left:10px;
  top:5px;
  font-size:2rem;
  color:rgba(255,255,255,0);
  z-index:1;
  -webkit-transition:color .1s;
  -moz-transition:color .1s;
  -o-transition:color .1s;
  transition:color .1s;
}
a[class*="entypo-"]:before {
  top:8px;
  left:9px;
  font-size:1.5rem;
  color:white;
}
a:hover[class*="entypo-"]:before {
  color:white;
}
figure, figure img, figcaption {
  position:absolute;
  top:0;
  right:0;
}
figure {
  bottom:0;
  left:0;
  width:600px;
  height:300px;
  display:block;
  overflow:hidden;
}
figure img {
  bottom:0;
  left:0;
  display:block;
  width:600px;
  height:300px;
  z-index:1;
  -webkit-transform:translateX(600px);
  -moz-transform:translateX(600px);
  -ms-transform:translateX(600px);
  -o-transform:translateX(600px);
  transform:translateX(600px);
  -webkit-transition:all .15s .15s, z-index 0s;
  -moz-transition:all .15s .15s, z-index 0s;
  -o-transition:all .15s .15s, z-index 0s;
  transition:all .15s .15s, z-index 0s;
}
figcaption {
  display:block;
  width:270px;
  height:300px;
  padding-top:20px;
  background-image:radial-gradient(rgba( 255,255,255,0.3), transparent);
  background-size:600px 600px;
  background-repeat:no-repeat;
  background-position:-300px -150px;
  text-align:center;
  z-index:3;
  -webkit-box-shadow:-5px 0px 20px rgba(0,0,0,0.1);
  -moz-box-shadow:-5px 0px 20px rgba(0,0,0,0.1);
  box-shadow:-5px 0px 20px rgba(0,0,0,0.1);
  -webkit-transform:translateX(300px);
  -moz-transform:translateX(300px);
  -ms-transform:translateX(300px);
  -o-transform:translateX(300px);
  transform:translateX(300px);
  -webkit-transition:all .35s;
  -moz-transition:all .35s;
  -o-transition:all .35s;
  transition:all .35s;
}
h4 {
  display:inline-block;
  padding:0 15px;
  color:white;
  font-family: 'Titillium Web', sans-serif;
  font-weight:300;
  font-size:2rem;
}
figcaption nav ul {display:block;padding-top:10px;}
figcaption nav ul li {display:inline-block;margin-left:5px;}
figcaption nav ul li a {
  position:relative;
  display:block;
  width:40px;
  height:40px;
  background:rgba(255,255,255,0.2);
  text-decoration:none;
  color:white;
  -webkit-border-radius:50%;
  -moz-border-radius:50%;
  border-radius:50%;
  -webkit-box-shadow:inset 0px 0px 0px 0px rgba(255,255,255,0);
  -moz-box-shadow:inset 0px 0px 0px 0px rgba(255,255,255,0);
  box-shadow:inset 0px 0px 0px 0px rgba(255,255,255,0);
  -webkit-transition:all .15s;
  -moz-transition:all .15s;
  -o-transition:all .15s;
  transition:all .15s;
}
figcaption nav ul li a:hover {
  background:rgba(255,255,255,0);
  -webkit-box-shadow:inset 0px 0px 0px 2px rgba(255,255,255,1);
  -moz-box-shadow:inset 0px 0px 0px 2px rgba(255,255,255,1);
  box-shadow:inset 0px 0px 0px 2px rgba(255,255,255,1);
}
figcaption p {
  padding:50px 15px;
  font-family:'Titillium Web', sans-serif;
  font-weight:300;
  color:#333;
  background-image:-webkit-gradient(linear, 0 0, 0 100%, from(rgba(255,255,255,0.35)), color-stop(0.3, rgba(255,255,255,0.35)), color-stop(0.3, transparent), color-stop(0.7, transparent), color-stop(0.7, rgba(255,255,255,0.35)), to(rgba(255,255,255,0.35)));
  background-image:-webkit-linear-gradient(rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.35) 30%, transparent 30%, transparent 70%, rgba(255,255,255,0.35) 70%, rgba(255,255,255,0.35) 100%);
  background-image:-moz-linear-gradient(rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.35) 30%, transparent 30%, transparent 70%, rgba(255,255,255,0.35) 70%, rgba(255,255,255,0.35) 100%);
  background-image:-o-linear-gradient(rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.35) 30%, transparent 30%, transparent 70%, rgba(255,255,255,0.35) 70%, rgba(255,255,255,0.35) 100%);
  background-image:linear-gradient(rgba(255,255,255,0.35) 0%, rgba(255,255,255,0.35) 30%, transparent 30%, transparent 70%, rgba(255,255,255,0.35) 70%, rgba(255,255,255,0.35) 100%);
  background-size:1px 100%;
  background-repeat:no-repeat;
  background-position:50% 0%;
}

input[type="radio"]:hover + label {
  background:rgba(255,255,255,0.6);
}
input[type="radio"]:checked + label {
  background:rgba(255,255,255,1);
  -webkit-box-shadow:0px 0px 0px 5px rgba(255,255,255,0.3);
  -moz-box-shadow:0px 0px 0px 5px rgba(255,255,255,0.3);
  box-shadow:0px 0px 0px 5px rgba(255,255,255,0.3);
}
input[type="radio"]:checked + label:before {}
input[type="radio"]:checked ~ figure img {
  z-index:2;
  -webkit-transform:translatex(0px);
  -moz-transform:translatex(0px);
  -ms-transform:translatex(0px);
  -o-transform:translatex(0px);
  transform:translatex(0px);
  -webkit-transition:all .15s, z-index 0s;
  -moz-transition:all .15s, z-index 0s;
  -o-transition:all .15s, z-index 0s;
  transition:all .15s, z-index 0s;
}
input[type="radio"]:checked ~ figure[class*="entypo-"]:before {
  z-index:3;
  color:rgba(255,255,255,0.5);
  -webkit-transition:color .5s;
  -moz-transition:color .5s;
  -o-transition:color .5s;
  transition:color .5s;
}
input[type="radio"]:checked ~ figure figcaption {
  z-index:8;
  -webkit-transform:translateX(0px);
  -moz-transform:translateX(0px);
  -ms-transform:translateX(0px);
  -o-transform:translateX(0px);
  transform:translateX(0px);
  -webkit-transition:all .35s, .7s;
  -moz-transition:all .35s, .7s;
  -o-transition:all .35s, .7s;
  transition:all .35s, .7s;
}

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