6.3.2 用CSS创造三角形
用div来创建,角上是平分的,所以要是内部宽高为0,其他边透明,正好是三角形。
代码
div {
border: 12px solid;
width: 0;
height: 0;
border-color: transparent red transparent transparent;
}
与伪元素after结合起来,在6.3.弹出层.html中增加CSS:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style>
figure {
width: 144px;
height: 153px;
margin: 20px 20px;
border: 1px solid #666;
position: relative;
float: left;
}
img {
width: 144px;
height: 153px;
display: block;
}
figcaption {
display: none;
/* 隐藏弹出层 */
position: absolute;
/* 相对于容器 */
left: 74%;
/* 放到右边 */
top: 15px;
width: 130px;
/* 弹出层宽度 */
padding: 10px;
/* 弹出层内边距 */
background-color: #f2eaea;
border: 3px solid red;
border-radius: 6px;
}
/* 鼠标悬停在图片上显示 */
figure:hover figcaption {
display: block;
}
figcaption h3 {
/*弹出层的内容*/
font-size: 14px;
color: #666;
margin-bottom: 6px;
}
figcaption a {
/*弹出层的内容*/
display: block;
text-decoration: none;
font-size: 12px;
color: #000;
}
/* 把弹出层设置为最高层 */
figure:hover figcaption {
display: block;
z-index: 2;
}
/* 红色三角形盒子 */
figcaption::after {
content: "";
position: absolute;
border: 12px solid;
border-color: transparent red transparent transparent;
height: 0px;
width: 0px;
top: 17px;
right: 100%;
}
</style>
</head>
<body>
<figure>
<img src="img/pink.jpg" alt="pink heels" />
<figcaption>
<h3>Pink Platforms</h3>
<a href="#">More info</a>
</figcaption>
</figure>
<figure class="click_me">
<img src="img/baowen.jpg" alt="baowen heels" />
<figcaption>
<h3>Leopard Platforms</h3>
<a href="#">More info</a>
</figcaption>
</figure>
<figure class="click_me">
<img src="img/red.jpg" alt="red heels" />
<figcaption>
<h3>Red Platforms</h3>
<a href="#">More info</a>
</figcaption>
</figure>
</body>
</html>