margin负值巧妙运用、巧妙用浮动、css小三角
巧妙运用css小三角
DOCTYPE html
>
<html>
<head>
<meta charset="utf-8" />
<title>title>
<style type="text/css">
.box1{
width: 0;
height: 0;
border-top: 100px solid pink;
/* border-right: 50px solid skyblue; */
/* border-bottom: 50px solid blue; */
border-left: 50px solid green;
}
style>
head>
<body>
<div class="box1">div>
body>
html>