jquery - CSS/Jquery - 响应悬停

Question

我想对响应式博客列表实现悬停效果 -

基本上我使用的是这个的样式版本 - http://startbootstrap.com/3-col-portfolio并且我想在将鼠标悬停在特定博客上时使用“阅读更多”按钮淡入灰色覆盖层，就像在这个快速模拟的图像中一样 -

我想我可以在博客 div 中将 div 放在另一个之上，并在悬停时淡入/淡出 -

<div class="col-md-4 portfolio-item">
        <div style="background:#FFF;" class="top">
            <a href="#project-link">
                <img class="img-responsive" src="http://breadwinningmama.com/wp-content/uploads/2013/04/fitness-running-shoes_fe.jpg">
            </a>
            <h3><a href="#project-link">A Fitness Article</a>
            </h3>
            <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam viverra euismod odio, gravida pellentesque urna.. <a href="articleInfo.html">Read More</a></p>
        </div>
        <div style="background:#000; width:100px; height:100px;" class="cover">
        read more
        </div>

        <div>

        </div>
        </div>


$(document).ready(function() {

$('.portfolio-item ').mouseenter(function() {
  $('.top').fadeOut('slow', function() {
    // Animation complete.
  });

  $('.cover').fadeIn('slow', function() {
    // Animation complete.
  });
}).mouseleave(function() {
  $('.top').fadeIn('slow', function() {
    // Animation complete.
  });

  $('.cover').fadeOut('slow', function() {
    // Animation complete.
  });
 });
 });
</script>

但由于它的响应性，我不确定如何让每个 div 填充所需的空间 - 或者这是否是实现我想要的效果的最佳方式。有什么建议吗？

Answer 1

使用你的代码，我认为你可以尝试这样的事情......

HTML

<div class="col-md-4 portfolio-item">
    <div class="top">
        <a href="#project-link">
            <img class="img-responsive" src="http://breadwinningmama.com/wp-content/uploads/2013/04/fitness-running-shoes_fe.jpg">
        </a>
     <h3><a href="#project-link">A Fitness Article</a></h3>
     <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam viverra euismod odio, gravida pellentesque urna...</p>
</div>
<div class="cover"><a href="articleInfo.html">Read More</a></div>

CSS

.portfolio-item{
    position:relative;
}

.cover{
    display: none;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background:#444;
    opacity: .4;    
}

.portfolio-item:hover .cover{
    display:block;
}