css样式规则
实现一个正方形，正方形里有四种不同的颜色
图片样例：
实现代码如下：
<!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>
div{
width: 0px;
height: 0px;
border-top:10px solid blue;
border-bottom:10px solid orange;
border-left:10px solid pink;
border-right:10px solid green;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
实现上三角形
<!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>
div{
width: 0px;
height: 0px;
border-bottom:10px solid orange;
border-left:10px solid transparent;
border-right:10px solid transparent;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
实现下三角形
<!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>
div{
width: 0px;
height: 0px;
border-top:10px solid orange;
border-left:10px solid transparent;
border-right:10px solid transparent;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
实现右三角形
<!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>
div{
width: 0px;
height: 0px;
border-top:10px solid transparent;
border-bottom:10px solid transparent;
border-left:10px solid orange;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
实现左三角形
<!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>
div{
width: 0px;
height: 0px;
border-top:10px solid transparent;
border-bottom:10px solid transparent;
border-right:10px solid orange;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
开口向左的梯形
<!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>
div{
width: 0px;
height: 0px;
border-bottom:10px solid orange;
border-right:10px solid transparent;
border-left: 10px solid orange;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
开口向右的梯形
<!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>
div{
width: 0px;
height: 0px;
border-bottom:10px solid orange;
border-right:10px solid orange;
border-left: 10px solid transparent;
}
</style>
</head>
<body>
<div>
</div>
</body>
</html>
