<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>127-线性渐变</title>
    <style>
        *{
margin: 0;
padding: 0;
        }
.main{
width: 400px;
height: 200px;
border: 1px solid #000;
box-sizing: border-box;
margin: 200px auto;
/*
            注意点:
            至少需要传递2个颜色, 至多没有上限
            */

            */
background: linear-gradient(to right, red 100px, green 100px, blue 100px);
        }
.one, .two, .three{
width: 100px;
height: 100%;
border: 1px solid #000;
box-sizing: border-box;
float: left;
        }
    </style>
</head>
<body>
<div class="main">
    <div class="one"></div>
    <div class="two"></div>
    <div class="three"></div>
</div>
</body>
</html>