实现的效果图如下：
示例代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>border制作书签（图形）</title>
<style>
.p2:before { /*做一个书签效果*/
position: absolute; /*必须*/
top: 50px;
left: 20px;
z-index: 1;
height: 0;
padding-right: 10px;
font-weight: bold;
line-height: 0;
color: #000;
border: 15px solid #ee7600;
border-right-color: transparent; /*右边框透明，变成空缺的角*/
content: '书签';
box-shadow: 0 5px 5px -5px #000;
}
.p2:after { /*书签的夹角*/
content: '';
position: absolute;
top: 80px;
left: 20px;
border: 4px solid #0c;
border-left-color: transparent;
border-bottom-color: transparent;
}
</style>
</head>
<body>
<p class="p1"></p>
<p class="p2"></p>
</body>
</html>总结
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