纯css3鼠标滑过图片炫酷标题显示特效

很多网站的图片鼠标滑过显示标题效果都是使用jQuery来完成的，现在，我们可以使用CSS3 animations来完成同样惊艳的效果。如果你对CSS3 animations还不了解，请先阅读CSS3 animations。

HTML

我们使用html5来制作这款插件。通过figure和figcaption来包装图片。4个demo中html结构都是相同的。

<figure>
    <img alt="nerd girl" src="img/img3.jpg">
    <figcaption>
        <h3>I love this title!</h3>

        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
        eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>

        <p><a href="#">Read More</a></p>
    </figcaption>
</figure>
                

DEMO1 CSS

在demo1中，将figure元素的position设置为相对定位（relative）。在这个例子中，标题和图片可以通过绝对定位相互堆叠到一起。

img {width: 100%;}
figure {
    margin: 0;
    padding: 0;
    height: 300px;
    position: relative;
    display: block;
    cursor: pointer;
    overflow: hidden;
    border: 3px solid #fff;
}
figure:hover figcaption {
    -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=100);
    filter: alpha(opacity=100);
    opacity: 1;
    -webkit-transform: rotate(0);
    -moz-transform: rotate(0);
    -o-transform: rotate(0);
    -ms-transform: rotate(0);
    transform: rotate(0);
    top: 0;
}
figcaption {
    -ms-filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);
    filter: alpha(opacity=0);
    opacity: 0;
    position: absolute;
    height: 100%;
    width: 100%;
    top: -100%;
    background: rgba(0,0,0,.5);
    color: #fff;
    -webkit-transition: all .5s ease;
    -moz-transition: all .5s ease;
    -o-transition: all .5s ease;
    -ms-transition: all .5s ease;
    transition: all .5s ease;
    -webkit-transition-delay: .5s;
    -moz-transition-delay: .5s;
    -o-transition-delay: .5s;
    -ms-transition-delay: .5s;
    transition-delay: .5s;
    -webkit-transform: rotate(360deg);
    -moz-transform: rotate(360deg);
    -o-transform: rotate(360deg);
    -ms-transform: rotate(360deg);
    transform: rotate(360deg);
}
figcaption h3 {
    font-family: 'Open sans';
    font-weight: 400;
    color: #f3b204;
    padding: 10px 20px;
    margin-bottom: 0;
    position: relative;
    left: 100%;
    margin-top: 37px;
    font-size: 30px;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -o-transition: all .5s;
    -ms-transition: all .5s;
    transition: all .5s;
    -webkit-transition-delay: 1s;
    -moz-transition-delay: 1s;
    -o-transition-delay: 1s;
    -ms-transition-delay: 1s;
    transition-delay: 1s;
}
figcaption p {
    font-family: 'Open sans';
    padding: 10px 20px;
    margin-bottom: 0;
    margin-top: 20px;
    position: relative;
    left: 100%;
    font-size: 13px;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -o-transition: all .5s;
    -ms-transition: all .5s;
    transition: all .5s;
    -webkit-transition-delay: 1.3s;
    -moz-transition-delay: 1.3s;
    -o-transition-delay: 1.3s;
    -ms-transition-delay: 1.3s;
    transition-delay: 1.3s;
}
figure:hover h3,figure:hover p { left: 0; }
figcaption a {
    color: #fff;
    border: 2px solid #fff;
    padding: 4px 10px;
    text-decoration: none;
}
figcaption a:hover {
    color: #4f5856;
    background: #fff;
}
                

注意：在figcaption上使用transition来旋转它，这将使标题有一个非常好的旋转和圆滑的过渡效果。在某些h3和p元素上使用了transition-delay，这使得它们在动画中有一些延迟。

其它demo的css代码请参考下载文件。