图像叠加问题

Question

我正在使用下面的代码图像叠加效果。我从某个网站上得到，刚才我注意到它不适用于Firefox和IE，它只显示黑色背景。但是当我们悬停它的显示图片这里是我的代码。我正在使用bootstrap。

.hovereffect { 
 
    width: 100%; 
 
    height: 100%; 
 
    float: left; 
 
    overflow: hidden; 
 
    position: relative; 
 
    text-align: center; 
 
    cursor: default; 
 
    background:#000; 
 
    cursor:pointer; 
 
} 
 

 
.hovereffect .overlay { 
 
    width: 100%; 
 
    height: 100%; 
 
    position: absolute; 
 
    overflow: hidden; 
 
    top: 0; 
 
    left: 0; 
 
    padding: 50px 20px; 
 
} 
 

 
.hovereffect img { 
 
    display: block; 
 
    position: relative; 
 
    max-width: none; 
 
    width: calc(100% + 20px); 
 
    -webkit-transition: opacity 0.35s, -webkit-transform 0.35s; 
 
    transition: opacity 0.35s, transform 0.35s; 
 
    -webkit-transform: translate3d(-10px,0,0); 
 
    transform: translate3d(-10px,0,0); 
 
    -webkit-backface-visibility: hidden; 
 
    backface-visibility: hidden; 
 
} 
 

 
.hovereffect:hover img { 
 
    opacity: 0.4; 
 
    filter: alpha(opacity=40); 
 
    -webkit-transform: translate3d(0,0,0); 
 
    transform: translate3d(0,0,0); 
 
} 
 

 
.hovereffect h2 { 
 
    text-transform: uppercase; 
 
    color: #fff; 
 
    text-align: center; 
 
    position: relative; 
 
    font-size: 17px; 
 
    font-weight:bold; 
 
    overflow: hidden; 
 
    padding: 0.5em 0; 
 
    background: rgba(0, 0, 0, 0.5); 
 
} 
 

 
.hovereffect h2:after { 
 
    position: absolute; 
 
    bottom: 0; 
 
    left: 0; 
 
    width: 100%; 
 
    height: 2px; 
 
    background: #fff; 
 
    content: ''; 
 
    -webkit-transition: -webkit-transform 0.35s; 
 
    transition: transform 0.35s; 
 
    -webkit-transform: translate3d(-100%,0,0); 
 
    transform: translate3d(-100%,0,0); 
 
} 
 

 
.hovereffect:hover h2:after { 
 
    -webkit-transform: translate3d(0,0,0); 
 
    transform: translate3d(0,0,0); 
 
} 
 

 
.hovereffect a, .hovereffect p { 
 
    color: #FFF; 
 
    opacity: 0; 
 
    filter: alpha(opacity=0); 
 
    -webkit-transition: opacity 0.35s, -webkit-transform 0.35s; 
 
    transition: opacity 0.35s, transform 0.35s; 
 
    -webkit-transform: translate3d(100%,0,0); 
 
    transform: translate3d(100%,0,0); 
 
} 
 
.hovereffect a:hover 
 
{ 
 
\t color:#fff; 
 
\t text-decoration:none; 
 
} 
 
.hovereffect:hover a, .hovereffect:hover p { 
 
    opacity: 1; 
 
    filter: alpha(opacity=100); 
 
    -webkit-transform: translate3d(0,0,0); 
 
    transform: translate3d(0,0,0); 
 
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> 
 
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script> 
 
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> 
 

 
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12"> 
 
    <div class="hovereffect"> 
 
     <img class="img-responsive" src="http://placehold.it/350x250" alt=""> 
 
      <div class="overlay"> 
 
       <h2>Effect 12</h2> 
 
\t \t \t \t <p> 
 
\t \t \t \t \t <a href="#">LINK HERE</a> 
 
\t \t \t \t </p> 
 
      </div> 
 
    </div> 
 
</div>

Answer 1

.hovereffect { 
 
    width: 100%; 
 
    height: 100%; 
 
    float: left; 
 
    overflow: hidden; 
 
    position: relative; 
 
    text-align: center; 
 
    cursor: default; 
 
    background:#000; 
 
    cursor:pointer; 
 
} 
 

 
.hovereffect img{ 
 
    opacity:0; 
 
} 
 

 
.hovereffect .overlay { 
 
    width: 100%; 
 
    height: 100%; 
 
    position: absolute; 
 
    overflow: hidden; 
 
    top: 0; 
 
    left: 0; 
 
    padding: 50px 20px; 
 
} 
 

 
.hovereffect img { 
 
    display: block; 
 
    position: relative; 
 
    max-width: none; 
 
    width: calc(100% + 20px); 
 
    -webkit-transition: opacity 0.35s, -webkit-transform 0.35s; 
 
    transition: opacity 0.35s, transform 0.35s; 
 
    -webkit-transform: translate3d(-10px,0,0); 
 
    transform: translate3d(-10px,0,0); 
 
    -webkit-backface-visibility: hidden; 
 
    backface-visibility: hidden; 
 
} 
 

 
.hovereffect:hover img { 
 
    opacity: 0.4; 
 
    filter: alpha(opacity=40); 
 
    -webkit-transform: translate3d(0,0,0); 
 
    transform: translate3d(0,0,0); 
 
} 
 

 
.hovereffect h2 { 
 
    text-transform: uppercase; 
 
    color: #fff; 
 
    text-align: center; 
 
    position: relative; 
 
    font-size: 17px; 
 
    font-weight:bold; 
 
    overflow: hidden; 
 
    padding: 0.5em 0; 
 
    background: rgba(0, 0, 0, 0.5); 
 
} 
 

 
.hovereffect h2:after { 
 
    position: absolute; 
 
    bottom: 0; 
 
    left: 0; 
 
    width: 100%; 
 
    height: 2px; 
 
    background: #fff; 
 
    content: ''; 
 
    -webkit-transition: -webkit-transform 0.35s; 
 
    transition: transform 0.35s; 
 
    -webkit-transform: translate3d(-100%,0,0); 
 
    transform: translate3d(-100%,0,0); 
 
} 
 

 
.hovereffect:hover h2:after { 
 
    -webkit-transform: translate3d(0,0,0); 
 
    transform: translate3d(0,0,0); 
 
} 
 

 
.hovereffect a, .hovereffect p { 
 
    color: #FFF; 
 
    opacity: 0; 
 
    filter: alpha(opacity=0); 
 
    -webkit-transition: opacity 0.35s, -webkit-transform 0.35s; 
 
    transition: opacity 0.35s, transform 0.35s; 
 
    -webkit-transform: translate3d(100%,0,0); 
 
    transform: translate3d(100%,0,0); 
 
} 
 
.hovereffect a:hover 
 
{ 
 
    color:#fff; 
 
    text-decoration:none; 
 
} 
 
.hovereffect:hover a, .hovereffect:hover p { 
 
    opacity: 1; 
 
    filter: alpha(opacity=100); 
 
    -webkit-transform: translate3d(0,0,0); 
 
    transform: translate3d(0,0,0); 
 
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> 
 
<div class="row"> 
 

 

 
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12"> 
 
    <div class="hovereffect"> 
 
     <img class="img-responsive" src="http://isomerica.net/~mlah/art/photos/small.nature.puffball.jpg" alt=""> 
 
      <div class="overlay"> 
 
       <h2>Effect 12</h2> 
 
       <p> 
 
        <a href="#">LINK HERE</a> 
 
       </p> 
 
      </div> 
 
    </div> 
 
</div> 
 

 

 

 
</div>

这里是JSFiddle

希望这有助于。