如何将此项目转换为代码？
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【中文标题】如何将此项目转换为代码？【英文标题】：How to convert this item into code? 【发布时间】：2018-11-20 02:30:40 【问题描述】：这是我的 css 和 html 代码：
我的目标是创建一个我在图像中指定的框
.stone-item
width: 330px;
transition: all .2s ease-in-out;
-webkit-transition: all .2s ease-in-out;
-moz-transition: all .2s ease-in-out;
-o-transition: all .2s ease-in-out;
position: relative;
margin: 0;
.stone-item img
width: 330px;
height: 220px;
.stone-item .stone-content
transition: all .2s ease-in-out;
-webkit-transition: all .2s ease-in-out;
-moz-transition: all .2s ease-in-out;
-o-transition: all .2s ease-in-out;
position: absolute;
bottom: -50%;
left: 0;
background: aqua;
<!doctype html>
<html>
<head>
<link rel="stylesheet" href="css.css">
</head>
<body>
<div class="stone-item">
<a href="#"><img src="" ></a>
<div class="stone-content">
<h4> </h4>
</div>
</div>
</body>
</html>问题出在哪里？ 为什么不行？？？？？？
我想要的输出：
before hover
之后： after mouse hover
【问题讨论】：
到目前为止你有什么？ 请回来查看。发布更新 【参考方案1】：这是您的代码。
HTML
<!doctype html>
<html>
<head>
<link rel="stylesheet" href="css.css">
</head>
<body>
<div class="stone-item">
<a href="#"><img src="https://i.stack.imgur.com/SjIvg.png" ></a>
<div class="stone-content">
<h4>adsfasdf</h4>
<p>
Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet.
</p>
</div>
</div>
</body>
</html>
CSS
.stone-item
width: 330px;
transition: all .2s ease-in-out;
-webkit-transition: all .2s ease-in-out;
-moz-transition: all .2s ease-in-out;
-o-transition: all .2s ease-in-out;
position: relative;
margin: 0;
overflow: hidden;
.stone-item img
width: 330px;
height: 220px;
.stone-item .stone-content
transition: all .2s ease-in-out;
-webkit-transition: all .2s ease-in-out;
-moz-transition: all .2s ease-in-out;
-o-transition: all .2s ease-in-out;
position: absolute;
bottom: calc(110px - 100%);
left: 0;
background: rgba(0, 255, 255, 0.6);
width: 100%;
padding: 20px;
box-sizing: border-box;
.stone-item .stone-content h4
margin: 0;
.stone-item:hover .stone-content
bottom: 0;
【讨论】：
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