<!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>三角巧妙运用</title>
<style>
* {
margin: 0;
padding: 0;
}
.box {
margin: 50px auto;
width: 0px;height: 0px;
border-top: 100px solid red;
border-right: 100px solid skyblue;
border-bottom: 100px solid orange;
border-left: 100px solid green;
}
/* 小三角 相比正方形就是先将其他三个边设置为透明，自己上边要比自己大*/
.xiao {
margin: 50px auto;
width: 0px;height: 0px;
border-top: 100px solid transparent;
border-right: 50px solid skyblue;
border-bottom: 0px solid transparent;
border-left: 0px solid transparent;
/* 这是上面简便写法 */
/* border-color: transparent skyblue transparent transparent;
border-style: solid;
border-width: 100px 50px 0 0; */
}
</style>
</head>
<body>
<div class="box">
</div>
<div class="xiao">
</div>
</body>
</html><!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>三角巧妙运用</title>
<style>
* {
margin: 0;
padding: 0;
}
.box {
margin: 50px auto;
width: 0px;height: 0px;
border-top: 100px solid red;
border-right: 100px solid skyblue;
border-bottom: 100px solid orange;
border-left: 100px solid green;
}
/* 小三角 相比正方形就是先将其他三个边设置为透明，自己上边要比自己大*/
.xiao {
margin: 50px auto;
width: 0px;height: 0px;
border-top: 200px solid transparent;
border-right: 100px solid skyblue;
border-bottom: 0px solid transparent;
border-left: 0px solid transparent;
/* 这是上面简便写法 */
/* border-color: transparent skyblue transparent transparent;
border-style: solid;
border-width: 100px 50px 0 0; */
}
.price {
position: relative;
margin: 50px auto;
width: 200px;height: 24px;
border: 1px solid skyblue;
line-height: 24px;
text-align: center;
}
.miaosha {
position: relative;
float: left;
width: 100px;height: 24px;
background-color: skyblue;
color: white;
font-weight: 700;
}
div i {
position: absolute;
top: 0;
right: 0;
border-top: 24px solid transparent;
border-right: 12px solid white;
border-bottom: 0px solid transparent;
border-left: 0px solid transparent;
}
.qian {
color: gray;
font-size: 12px;
}
</style>
</head>
<body>
<div class="box">
</div>
<div class="xiao">
</div>
<div class="price">
<span class="miaosha">$1999<i></i></span>
<span class="qian"><del>$4999</del></span>
</div>
</body>
</html>