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This time I will bring you a detailed explanation of the installation and use of Less. What are the precautions for the installation and use of Less? The following is a practical case, let’s take a look.
node.js is a front-end framework that comes with a package management tool npm
node.js installation
Official website: http://nodejs.cn/
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link rel="stylesheet" href="style.css" rel="external nofollow" /> </head> <body> <p id="box"> <ul> <li>你好</li> <li>hello</li> </ul> </p> </body> </html>style.less
#box{ width:200px; height:200px; background-color:blue; ul{ color:white; li{ line-height:50px; } } }Enter lessc xxx.less xxx.css in the command line, is as follows:
https://less.bootcss.com/
Variable@red:red; @w:200px; #big{ width:@w; height:@w; background-color:@red; #small{ width:@w; height:@w; background-color:@red; } } p{ color:@red; }Mixing
.bt{ width:200px; height:200px; border-top:2px solid red; background-color:red; } #big{ .bt; #small{ .bt; } }•Nesting
#box{ width:100%; height:60px; background-color:#ccc; h3{ width:100%; height:20px; background-color:yellow; } ul{ list-style:none; li{ height:40px; line-height:40px; float:left; padding:0 10px; } } }•Operation
@color:#333; #box{ width:100%; height:60px; background-color:@color+#111; } •calc() @var:50vh/2; #box{ width:calc(50% + (@var - 20px)); }•Fixed function
@base:#f04615; @width:0.5; #box{ width:percentage(@width); color:saturate(@base,5%); background-color:spin(lighten(@base,25%),8); }•Comments
//单行注释// /*多行 注释*/ •引入其他less文件 @import "other.less";I believe you have mastered the method after reading the case in this article , for more exciting content, please pay attention to other related articles on the php Chinese website! Recommended reading:
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