Find not used css

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Tool for finding CSS classes that are styled by selectors in a set of CSS files but not used

robertknight/find-unused-css-classes

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Tool for finding CSS classes which are referenced by selectors in a set of CSS files but not used.

npm install -g find-unused-css-classes find-unused-css-classes used-class-list.txt app.css 

Where used-class-list.txt is a new-line separated list of classes that are known to be used in your site or application. This tool does not help you generate that. If you have a set of HTML files or templates you can use used-css-classes.

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Tool for finding CSS classes that are styled by selectors in a set of CSS files but not used

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Tool for finding out which CSS selectors you’re NOT using.

License

peterbe/mincss

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README.rst

UPDATE April 2019

INSTEAD OF USING THIS, A MUCH BETTER ALTERNATIVE IS https://github.com/peterbe/minimalcss/ WHICH SUPPORTS JAVASCRIPT AND THE CSS PARSING AND TRANSFORMATIONS ARE DONE WITH A PARSED AST.

Clears the junk out of your CSS by finding out which selectors are actually not used in your HTML.

By Peter Bengtsson, 2012-2018

Tested in Python 2.7, 3.3, 3.4 and 3.5

With the onslaught of Twitter Bootstrap upon the world it’s very tempting to just download their whole fat 80+Kb CSS and serve it up even though you’re not using half of the HTML that it styles.

There’s also the case of websites that have changed over time but without the CSS getting the same amount of love refactoring. Then it’s very likely that you get CSS selectors that you’re no longer or never using.

This tool can help you get started reducing all those selectors that you’re not using.

No, that’s a separate concern. This tool works independent of whitespace compression/optimization.

For example, if you have a build step or a runtime step that converts all your CSS files into one (concatenation) and trims away all the excess whitespace (compression) then the output CSS can still contain selectors that are never actually used.

If you have a script that creates DOM elements in some sort of window.onload event then mincss will not be able to know this because at the moment mincss is entirely static.

So what is a web developer to do? Simple, use /* no mincss */ like this for example:

That tells mincss to ignore the whole block and all its selectors.

By default, mincss will find all tags and process them. If you have a link or an inline tag that you don’t want mincss to even notice, simply add this attribute to the tag:

One technique to have a specific CSS selector be ignored by mincss is to put in a comment like /* no mincss */ inside the CSS selectors block.

Another way is to leave the whole stylesheet as is. The advantage of doing this is if you have a link or style tag that you want mincss to ignore but still find and include in the parsed result.

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Tool for finding out which CSS selectors you’re NOT using.

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uncss: Find Unused CSS

You know what’s better than adding features to a website or app, from a code perspective? Removing stuff you don’t need. Whether it be code, images, or dependencies, getting rid of the crap stale code is like the first sip of a big glass of wine after a long day of stressful work. Running a directory of images through ImageOptim is a euphoric experience, am I right? What if there was a tool, however, which would allow you to find unused CSS for a given website? There is, and it’s called uncss , a NodeJS powered utility. Let’s take a look at how uncss works!

A basic usage of uncss ‘s command line tool would be:

uncss https://davidwalsh.name > styles.css

The output of this execution is a stylesheet featuring only the used CSS rules — unused rules are removed. So how does uncss work? I’ll let them tell you how:

1. The HTML files are loaded by PhantomJS and JavaScript is executed.
2. Used stylesheets are extracted from the resulting HTML.
3. The stylesheets are concatenated and the rules are parsed by css-parse.
4. document.querySelector filters out selectors that are not found in the HTML files.
5. The remaining rules are converted back to CSS.

Like just about every NodeJS-based utility, you can also take advantage of its JavaScript API. Here’s an example usage:

var uncss = require('uncss'); var files = ['my', 'array', 'of', 'HTML', 'files'], options = < ignore : ['#added_at_runtime', /test\-6+/], media : ['(min-width: 700px) handheld and (orientation: landscape)'], csspath : '../public/css/', raw : 'h1 < color: green >', stylesheets : ['lib/bootstrap/dist/css/bootstrap.css', 'src/public/css/main.css'], ignoreSheets : [/fonts.googleapis/], urls : ['http://localhost:3000/mypage', '. '], // Deprecated timeout : 1000, htmlroot : 'public' >; uncss(files, options, function (error, output) < console.log(output); >); /* Look Ma, no options! */ uncss(files, function (error, output) < console.log(output); >); /* Specifying raw HTML */ var raw_html = '. '; uncss(raw_html, options, function (error, output) < console.log(output); >);

There’s no arguing that years of maintaining, adding, and removing from a site will add excess code to the codebase. That excess code comes at the cost of users who have load the extra code, so eliminating the dead code is important. Give uncss a try — it’s an easy to use, automated helper to keep your codebase as tight as possible!

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Find css styles not used

1. Audit Tab: > Right Click + Inspect Element on the page, find the «Audit» tab, and run the audit, making sure «Web Page Performance» is checked. Lists all unused CSS tags — see image below. 2.

How do I get unused CSS styles?

The Coverage tab in Chrome DevTools can help you find unused JavaScript and CSS code. Removing unused code can speed up your page load and save your mobile users cellular data.

How do I get rid of unused CSS in VS code?

Usage. type CMD+P (or CTRL+P in windows) and enter remove unused style , then save the file.

How do I know my CSS style?

In Chrome, the first step is to control-click on the element you want to know more about, and select «Inspect Element» from the contextual menu. This will open the web inspector with the element selected.

How can I see all CSS?

On Chrome’s Developer Tools tab (CTRL + SHIFT + I), go to Resources (you may have to enable Resource tracking on that page), and click on the sub-tab Stylesheets. That will show all css files loaded by that page.

How do I get rid of unused CSS plugins in WordPress?

Upon activation, you need to visit the Settings » WP Rocket page and switch to the ‘File Optimization’ tab. Next, you need to scroll down to the CSS Files section and then check the box next to the ‘Remove Unused CSS (Beta)’ option.

How do I find the CSS file of an element?

How can find the css file from inspector ? right click, choose inspect element and will open the styles tab on your right and u can see the classes that holds the css and as well on right top will show in which file name is that class.

How do I eXtract the CSS from a website?

Install «eXtract Snippet»=> Inspect an element using chrome’s developer tools ‘inspect element’. Within the developer tools you should also see a panel named «eXtract HTML CSS». Click on to the «eXtract HTML CSS» panel and further click onto the «Get HTML/CSS of inspected element» button withing the panel.

How do I get the CSS stylesheet from a website?

In order to find out the external stylesheets used on a webpage, look for the “link” tags on the source code. Click on the links ending with “. css” to see all the style elements defined in the stylesheet. A website can use an external stylesheets in different format.

What is PurgeCSS?

PurgeCSS analyzes your content and your css files. Then it matches the selectors used in your files with the one in your content files. It removes unused selectors from your css, resulting in smaller css files.

Where is coverage tab in Chrome?

In Chrome’s Dev Tools (Command+Option+C on Mac, Control+Shift+C on Windows/Linux, or right-click on the page and choose “Inspect”), select the “Sources” tab, and if “Coverage” isn’t a displayed tab at the bottom, select it using the three vertical dots to the left of those tabs.

Year

How do you display current year in HTML?How do I get copyright in Javascript?How do you insert current year?How do you use Andcopy in HTML?How do you.

Composer

How do I update my composer?How do I upgrade composer to composer 2?Does drupal 9 require composer?How do I find my Drupal version? How do I update .

Case

Can approve feed post and comment permission?What is edit permissions?Who has the permission to edit a chatter profile?What are four basic permission.

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Tool for finding CSS classes that are styled by selectors in a set of CSS files but not used

robertknight/find-unused-css-classes

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README.md

Tool for finding CSS classes which are referenced by selectors in a set of CSS files but not used.

npm install -g find-unused-css-classes find-unused-css-classes used-class-list.txt app.css 

Where used-class-list.txt is a new-line separated list of classes that are known to be used in your site or application. This tool does not help you generate that. If you have a set of HTML files or templates you can use used-css-classes.

About

Tool for finding CSS classes that are styled by selectors in a set of CSS files but not used

Источник