纯css写三角形
主要是利用边框border属性加上transparent透明属性实现的效果
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>三角形</title>
<style>
/* div{
display: flex;
} */
.box{
width: 0px;
height: 0px;
border: 50px solid;
border-color: transparent transparent transparent red;
}
</style>
</head>
<body>
<div>
<div class="box"></div>
</div>
</body>
</html>
面包屑标题
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.box{
width: 400px;
height: 40px;
position: absolute;
top: 0;left: 0;
bottom: 0;right: 0;
margin:auto;
}
.box ul{
height: 40px;
display: flex;
justify-content: space-evenly;
align-items: center;
list-style: none;
margin: 0;
padding: 0;
}
.box ul li{
padding: 0 10px;
}
ul li a{
text-decoration: none;
font-size: 18px;
color: #777;
line-height: 30px;
transform: all 0.5s;
}
ul li:hover a{
color: royalblue;
}
ul li a::after{
content: "";
display: block;
width: 100%;
height: 3px;
border-radius: 10px;
background: royalblue;
margin-top: 4px;
transform: scale(0);
transition: all 0.5s;
}
ul li:hover a::after{
transform: scale(1);
}
</style>
</head>
<body>
<div class="box">
<ul>
<li><a href="">关于我们</a></li>
<li><a href="">产品介绍</a></li>
<li><a href="">公司介绍</a></li>
</ul>
</div>
</body>
</html>
