（二）Less初体验
1：引入Less
npm install less -g
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>初识 Less</title>
<link href="./main.css" rel="stylesheet">
</head>
<body>
<div class="container">1</div>
<div class="container2">2</div>
<div class="container3">3</div>
</body>
</html>
@width: 100%;
@height: 100px;
@color: red;
.container{
width: @width;
height: @height;
background-color: @color;
margin-bottom: 5px;
}
.container2{
width: @width;
height: @height;
background-color: @color;
margin-bottom: 5px;
}
.container3{
width: @width;
height: @height;
background-color: @color;
margin-bottom: 5px;
}
lessc main.less main.css
