答案 0 :(得分:1)
通过在:hover
上创建线性渐变透明 - 白色透明和向前/向后移动背景来实现当前效果。
这里用于在此动画下放置图像的解决方案。但请记住,无休止的动画可能会让您的用户感到非常分心和烦恼
.wrapper {
position: relative;
width: 350px;
height: 150px;
/*border: 2px solid #444;*/
border-radius: 10px;
overflow: hidden;
}
img {
position: relative;
z-index: 0;
width: 100%;
}
.gradient {
transition: background-position .5s;
background-size: 200% auto;
box-shadow: 0 0 20px #eee;
font: 0;
position: absolute;
z-index: 1;
left: 0;
top: 0;
right: 0;
bottom: 0;
}
.gradient {
background-image: linear-gradient(to top, transparent 0%, white 51%, transparent 100%);
background-position: center bottom;
}
.gradient:hover {
background-position: center top;
}
.gradient.animated {
animation: gradient 2s infinite;
}
@keyframes gradient {
0% {
background-position: center bottom;
}
50% {
background-position: center top;
}
100% {
background-position: center bottom;
}
}

<div class='wrapper'>
<div href='#' class='gradient'></div>
<img src='http://lorempixel.com/350/150/sports/' />
</div>
<div class='wrapper'>
<div href='#' class='gradient animated'></div>
<img src='http://lorempixel.com/350/150/sports/' />
</div>
&#13;
更简单的例子以便更好地理解
您可以在下面的文章中找到更多内容
.gradiented {
transition: background-position .5s;
background-size: 200% auto;
box-shadow: 0 0 20px #eee;
border-radius: 10px;
width: 200px;
height: 200px;
}
.gradiented {
background-image: linear-gradient(to top, #283048 0%, #859398 51%, #283048 100%);
background-position: center bottom;
}
.gradiented:hover {
background-position: center top;
}
&#13;
<div href='#' class='gradiented'></div>
&#13;