less
Advanced tools
Package description
The 'less' npm package is a pre-processor for CSS, which extends the capabilities of CSS with dynamic behavior such as variables, mixins, operations, and functions. It allows developers to write CSS in a more maintainable and extendable way.
Variables
Variables allow you to specify widely used values in a single place, and then reuse them throughout the stylesheet, making your CSS more maintainable.
@primary-color: #4D9FEC;
a {
color: @primary-color;
}Mixins
Mixins allow you to embed all the properties of a class into another class by simply including the class name as one of its properties. It's like variables, but for whole classes.
.bordered {
border-top: dotted 1px black;
border-bottom: solid 2px black;
}
#menu a {
.bordered;
}Nested Rules
Nested rules make it possible to nest selectors inside other selectors. This makes the structure of your CSS mirror the structure of your HTML.
#header {
color: black;
.navigation {
font-size: 12px;
}
.logo {
width: 300px;
}
}Functions & Operations
Functions and operations let you manipulate numbers and colors, doing math with them and applying functions to achieve dynamic results.
@base: 5%;
.padding {
padding: @base * 2;
}Sass (Syntactically Awesome Stylesheets) is a mature, stable, and powerful professional grade CSS extension language. It provides similar features to Less, such as variables, mixins, and nested rules. Sass has two syntaxes: the original 'indent' syntax that is similar to Haml and the newer 'SCSS' that uses braces like CSS. It's one of the most popular CSS preprocessors.
Stylus is a preprocessor that offers a mix of features from both Sass and Less, as well as some additional unique features. It has a more flexible syntax that can be written with or without braces, colons, and semicolons. Stylus provides powerful and efficient stylesheet writing capabilities.
PostCSS is a tool for transforming CSS with JavaScript plugins. These plugins can lint your CSS, support variables and mixins, transpile future CSS syntax, inline images, and more. PostCSS is different from preprocessors like Sass and Less in that it's modular and can be configured to perform a wide variety of tasks.
Readme
Chat with Less.js users and contributors
The dynamic stylesheet language. http://lesscss.org.
This is the JavaScript, official, stable version of Less.
Options for adding Less.js to your project:
npm install lessgit clone https://github.com/less/less.js.gitFor general information on the language, configuration options or usage visit lesscss.org.
Here are other resources for using Less.js:
Please read CONTRIBUTING.md. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.
Before opening any issue, please search for existing issues and read the Issue Guidelines, written by Nicolas Gallagher. After that if you find a bug or would like to make feature request, please open a new issue.
Please report documentation issues in the documentation project.
Read Developing Less.
See the changelog
Copyright (c) 2009-2017 Alexis Sellier & The Core Less Team Licensed under the Apache License.
FAQs
Leaner CSS
The npm package less receives a total of 3,489,802 weekly downloads. As such, less popularity was classified as popular.
We found that less demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 5 open source maintainers collaborating on the project.
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