CSS3鼠标悬停图片炫酷遮罩层动画特效

这是一款CSS3鼠标悬停图片炫酷遮罩层动画特效。该特效在鼠标悬停到图片上面时，图片遮罩层从四个方向向中间合拢，之后再展示图片的描述信息和链接，效果非现炫酷。

使用方法

在页面中引入下面的文件。

<link href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<link href="https://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
                

HTML结构

<div class="container">
    <div class="row">
        <div class="col-md-4 col-sm-6">
            <div class="box">
                <img src="images/img-1.jpg">
                <div class="box-content">
                    <div class="content">
                        <h3 class="title">Kristina</h3>
                        <span class="post">Web designer</span>
                        <ul class="icon">
                            <li><a href="#"><i class="fa fa-search"></i></a></li>
                            <li><a href="#"><i class="fa fa-link"></i></a></li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
        <div class="col-md-4 col-sm-6">
            <div class="box">
               <img src="images/img-2.jpg">
                <div class="box-content">
                    <div class="content">
                        <h3 class="title">Miranda Roy</h3>
                        <span class="post">Web designer</span>
                        <ul class="icon">
                            <li><a href="#"><i class="fa fa-search"></i></a></li>
                            <li><a href="#"><i class="fa fa-link"></i></a></li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
                

CSS样式

.box{
    font-family: 'Merriweather Sans', sans-serif;
    box-shadow: 0 0 2px rgba(0, 0, 0, .1);
    overflow: hidden;
    position: relative;
    z-index: 1;
}
.box:before,
.box:after,
.box .box-content:before,
.box .box-content:after{
    content: "";
    width: 100%;
    height: 50%;
    background: #E65100;
    opacity: 0.6;
    transform: translateX(-50%) translateY(0%);
    position: absolute;
    top: -50%;
    left: 50%;
    z-index: 1;
    -webkit-clip-path: polygon(0 0, 50% 100%, 100% 0);
    clip-path: polygon(0 0, 50% 100%, 100% 0);
    transition: all .3s;
}
.box:after{
    transform: translateX(-50%) translateY(0%);
    top: auto;
    bottom: -50%;
    z-index: 0;
    -webkit-clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}
.box .box-content:before{
    width: 50%;
    height: 100%;
    transform: translateX(0%) translateY(-50%);
    top: 50%;
    left: auto;
    right: -50%;
    -webkit-clip-path: polygon(100% 0, 0 50%, 100% 100%);
    clip-path: polygon(100% 0, 0 50%, 100% 100%);
}
.box .box-content:after{
    width: 50%;
    height: 100%;
    transform: translateX(0%) translateY(-50%);
    top: 50%;
    right: auto;
    left: -50%;
    z-index: 0;
    -webkit-clip-path: polygon(0 100%, 100% 50%, 0 0);
    clip-path: polygon(0 100%, 100% 50%, 0 0);
}
.box:hover:before{ top:0; }
.box:hover:after{ bottom:0; }
.box:hover .box-content:before{ right:0; }
.box:hover .box-content:after{ left:0; }
.box img{
    width: 100%;
    height: auto;
    transform: scale(1);
    transition: all 0.5s;
}
.box:hover img{ transform: scale(1.5); }
.box .box-content{
    height: 100%;
    width: 100%;
    position: absolute;
    left: 0;
    top: 0;
}
.box .content{
    text-align: center;
    width: 100%;
    transform: translateX(-50%) translateY(-50%);
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 1;
}
.box .title{
    color: #fff;
    font-size: 25px;
    font-weight: 600;
    text-transform: uppercase;
    margin: 0 0 5px;
    transform: rotateY(360deg) scale(0);
    transition: all 0.5s;
}
.box:hover .title{ transform: rotateY(0) scale(1); }
.box .post{
    color: #fff;
    font-size: 15px;
    letter-spacing: 1px;
    text-transform: capitalize;
    margin: 0 0 15px;
    display: block;
    transform: rotateY(360deg) scale(0);
    transition: all 0.5s ease 0.25s;
}
.box:hover .post{ transform: rotateY(0) scale(1); }
.box .icon{
    text-align: center;
    padding: 0;
    margin: 0;
    list-style: none;
    transform: rotateY(360deg) scale(0);
    transition: all 0.5s ease 0.45s;
}
.box:hover .icon{ transform: rotateY(0) scale(1); }
.box .icon li{
    display: inline-block;
    margin: 0 3px;
}
.box .icon li a{
    color: #E65100;
    background-color: #fff;
    font-size: 18px;
    line-height: 35px;
    height: 35px;
    width: 35px;
    border-radius: 10px;
    display: block;
    transition: all 0.3s;
}
.box .icon li a:hover{
    color: #fff;
    background-color: #E65100;
    box-shadow: 0 0 10px #000;
}
@media only screen and (max-width:990px){
    .box{ margin-bottom: 30px; }
}
@media only screen and (max-width:479px){
    .box .title{ font-size: 22px; }
}