Periodically, as new functionality is being developed, lessc builds will be published to npm, tagged as beta. These builds will not be published as a latest official release, and will typically have beta in the version use lessc -v to get current version. In v2 of less, Clean CSS is no longer included as a direct dependency. To use clean css with lessc, use the clean css plugin.
- Taken by Faith;
- Man v. Liver.
- How To Use The LESS CSS Preprocessor For Smarter Style Sheets!
- What is a CSS Preprocessor?.
- Less (stylesheet language) - Wikipedia.
Using Less. To start off, link your. Next, download less. You can set options either programmatically, by setting them on a less object before the script tag - this then affects all initial link tags and programmatic usage of less. While it is possible to use Less on the client side in production, please be aware that there are performance implications for doing so although the latest releases of Less are quite a bit faster.
Alternatively, you can enable Watch mode temporarily by appending! Enables run-time modification of Less variables. When called with new values, the Less file is recompiled without reloading. Simple basic usage:. Either specify the option dumpLineNumbers as above or add! Also see FireLess and Less v2. The comment option can be used to display file information and line numbers in the inline compiled CSS code.
If you use the watcher or call refresh with reload set to true, then the cache will be cleared before running. If the file in an import rule does not exist at that exact location, Less will look for it at the location s passed to this option. You might use this for instance to specify a path to a library which you want to be referenced simply and relatively in the Less files. Allows you to add a path to every generated import and url in your css.
This does not affect Less import statements that are processed, just ones that are left in the output css. For instance, if all the images the css use are in a folder called resources, you can use this option to add this on to the URL's and then have the name of that folder configurable. By default URLs are kept as-is off , so if you import a file in a sub-directory that references an image, exactly the same URL will be output in the css.
This option allows you to rewrite URLs in imported files so that the URL is always relative to the base file that has been passed to Less.
Koala - a gui application for LESS, Sass, Compass and CoffeeScript compilation.
With nothing set or with rewriteUrls: 'off' , compiling main. With rewriteUrls: 'local' , it will only rewrite URLs that are explicitly relative those starting with a. You may also want to consider using the data-uri function instead of this option, which will embed images into the css. Less has re-built math options to offer an in-between feature between the previous strictMath setting, which required parentheses all the time, and the default, which performed math in all situations.
In legacy strictMath mode, mixed expressions outside of parentheses means entire parentheses won't evaluate. Probably not what you want. This has been replaced by the math option. In this case, things are clearly not right - a length multiplied by a length gives an area, but css does not support specifying areas. So we assume that the user meant for one of the values to be a value, not a unit of length and we output 2px.
This option defines a variable that can be referenced by the file. Effectively the declaration is put at the top of your base Less file, meaning it can be used but it also can be overridden if this variable is defined in the file.
As opposed to the global variable option, this puts the declaration at the end of your base file, meaning it will override anything defined in your Less file. This option allows you to specify a argument to go on to every URL. This may be used for cache-busting for instance. Generates inline source-mapping. This was the only option before browsers started supporting sourcemaps. Compress using less built-in compression. This does an okay job but does not utilise all the tricks of dedicated css compression. Most of these options are not applicable to using Less.
Specifies a rootpath that should be prepended to each of the less file paths inside the sourcemap and also to the path to the map file specified in your output css. Because the basepath defaults to the directory of the input less file, the rootpath defaults to the path from the sourcemap output file to the base directory of the input less file. So for the option above you might have. This is the opposite of the rootpath option, it specifies a path which should be removed from the output paths.
For instance if you are compiling a file in the less-files directory but the source files will be available on your web server in the root or current directory, you can specify this to remove the additional less-files part of the path.
Less (stylesheet language)
This option specifies that we should include all of the Less files in to the sourcemap. This means that you only need your map file to get to your original source.
This can be used in conjunction with the map inline option so that you do not need to have any additional external files at all. This option specifies that the map file should be inline in the output CSS. This is not recommended for production, but for development it allows the compiler to produce a single output file which in browsers that support it, use the compiled css but show you the non-compiled less source.
Allows you to override the URL in the css that points at the map file. This is for cases when the rootpath and basepath options are not producing exactly what you need. Multiply, divide, add, and subtract your way to CSS sanity. A basic mixin is essentially an include or a partial for a snippet of CSS. They're written just like a CSS class and can be called anywhere. A parametric mixin is just like a basic mixin, but it also accepts parameters hence the name with optional default values.
Nearly all of Bootstrap's mixins are stored in mixins. Once installed just run make from the root of your bootstrap directory and you're all set. Additionally, if you have watchr installed, you may run make watch to have bootstrap automatically rebuilt every time you edit a file in the bootstrap lib this isn't required, just a convenience method.
Download the latest Less. To recompile the. The unofficial Mac app watches directories of. If you like, you can toggle preferences in the app for automatic minifying and which directory the compiled files end up in. Plus, the source code is on GitHub.
Built with LESS. Why LESS? What's included? Variables Managing colors and pixel values in CSS can be a bit of a pain, usually full of copy and paste. Mixins Those three border-radius declarations you need to make in regular ol' CSS?
Copyright 2019 - All Right Reserved