Less

Using Less as a CSS preprocessor in your project? No problemo, Font Awesome has a Less version if you’d prefer to import our styling into your workflow.

We’ll cover the basics of getting all the files you’ll need from the directory, adding Font Awesome to your compile, tools for referencing icons with ease, and more!

Before You Get Started

Make sure you:

• Downloaded the Font Awesome v6 files and have them handy.
• Have a project set up with Less.
• Need the power (variables, mixins, etc.) that Less brings. Plain CSS is far <pun>less</pun> complex.

Grab the Files

You’ll find everything you need in the fontawesome6 directory of the Font Awesome download. Below is the list of files made specifically for Less. You can add them all to your project or pick just the ones you need.

Files	What They Do
fontawesome.less	Main Font Awesome compile
brands.less	Brand icon styles
solid.less	Solid icon styles
regular.less	Regular icon styles
light.less	Light icon styles
thin.less	Thin icon styles
sharp-solid.less	Sharp Solid icon styles
sharp-regular.less	Sharp Regular icon styles
sharp-light.less	Sharp Light icon styles
sharp-thin.less	Sharp Thin icon styles
duotone.less	Duotone Solid icon styles
duotone-regular.less	Duotone Regular icon styles
duotone-light.less	Duotone Light icon styles
duotone-thin.less	Duotone Thin icon styles
sharp-duotone-solid.less	Sharp Duotone Solid icon styles
sharp-duotone-regular.less	Sharp Duotone Regular icon styles
sharp-duotone-light.less	Sharp Duotone Light icon styles
sharp-duotone-thin.less	Sharp Duotone Thin icon styles
_animated.less	animated icon support styling
_bordered-pulled.less	bordered + pulled icon support styling
_core.less	Base icon reference class syntax and definitions
_custom-icons.less	includes Custom Icons in a Kit Download (if you’re using one)
_fixed-width.less	fixed-width icon support styling
_icons.less	All icon definitions
_list.less	icons in a list support styling
_mixins.less	Utilities used throughout styling/icon definitions
_rotated-flipped.less	rotating icons support styling
_screen-reader.less	screen-reader specific and accessibility support styling
_sizing.less	icon sizing support styling
_stacked.less	stacking icons support styling
_variables.less	Where variables are defined that are used throughout styling

---

Adding Font Awesome to Your Compile

Copy the less folder into your project. Then copy the entire webfonts folder into your project, where your static files get served.

Open your project’s less/variables.less and edit the @fa-font-path variable to point to where you placed the webfonts folder.

@fa-font-path: '../webfonts';

In your main Less compile file, import Font Awesome by adding the core styles file, @import "less/fontawesome.less". Then import one or more styles.

// importing core styling file
@import './fontawesome/less/fontawesome.less';

@import './fontawesome/less/solid.less';
@import './fontawesome/less/brands.less';

If you wanted to use more styles, add more style imports:

// importing core styling file
@import './fontawesome/less/fontawesome.less';

// our project needs Classic Solid, Brands, and Sharp Solid
@import './fontawesome/less/solid.less';
@import './fontawesome/less/brands.less';
@import './fontawesome/less/sharp-solid.less';

Using Duotone Icons

If a project uses Duotone icons, you’ll need to @import the correct file(s).

// importing core styling file
@import './fontawesome/less/fontawesome.less';

// import Duotone Solid style
@import './fontawesome/less/duotone.less';

// import Duotone Regular style
@import './fontawesome/less/duotone-regular.less';

// import Sharp Duotone Solid style
@import './fontawesome/less/sharp-duotone-solid.less';

Ch-chigity Check Your Paths!

Make sure the font path and your webfonts directory are relative to where your compiled CSS will be located.

Autoprefixer is not included in v6!

For the sake of not being too prescriptive, we’ve removed Autoprefixer from our compile and build steps. If your project needs it, you’ll need to add it yourself.

---

Using a Downloaded Kit

Starting with version 6.4, you can now download a Kit to compile and host yourself just like you do with Font Awesome! To download your Kit, make sure the Kit’s version in Settings is set to “Latest 6.x” or if you selected a specific version, it needs to be at least 6.4. Then from the Set Up tab in your Kit, you’ll see the options for downloading. Your kit download will contain all of the Less files noted above.

Custom Icons in Downloaded Kits

If you have custom icons in your Kit, they will be included as an additional files in your Kit download.

Path to the files	What the files do
/webfonts/custom-icons.woff /webfonts/custom-icons.ttf	Custom icon font in WOFF2 and TTF formats
/less/custom-icons.less	Less Preprocessor partial that handles the display of custom icons using Web Fonts

Here’s a simple example that follows the compile steps above along with custom icons:

// importing core styling file
@import './fontawesome/less/fontawesome.less';

//  importing Font Awesome styles
@import './fontawesome/less/solid.less';
@import './fontawesome/less/brands.less';

// importing a kit's custom icons
@import './fontawesome/less/custom-icons.less';

---

Adding Icons

Once you’ve added the imports above and have your compiled CSS that includes Font Awesome set up and referenced in your project, you can add icons to your project’s HTML.

Here’s an example of how to reference icons with your compiled and hosted CSS:

<head>
  <!--load your compiled CSS (including Font Awesome) -->
  <link
    href="/your-path-to-your-compiled-css-including-fontawesome/file.css"
    rel="stylesheet"
  />
</head>
<body>
  <!-- This example uses <i> element with:
  1. the `fa-solid` style class for solid style
  2. the `user` icon with the `fa-` prefix -->
  <i class="fa-solid fa-user"></i>

  <!-- Or you can use a <span> element, with classes applied in the same way -->

  <span class="fa-solid fa-user"></span>
</body>

Less Customizations at Your Command

Any changes to the Font Awesome Less variables (e.g. changing the fa- prefix or our sizing scales), will take effect in your project’s compiled CSS.

Custom Less-based CSS Rules

If you want to use any of our Less mixins or utilities, you can leverage our CSS Pseudo-elements method of adding icons to your project to do. This method is also useful when changing the HTML on your project is not an option.

Using our .fa-icon- and .fa-family- style mixins, you can easily generate custom CSS Pseudo-element rules with CSS selectors specific to your project.

// Solid style of user
.user {
  .fa-icon-solid(@fa-var-user);
}

// Regular style of triangle-exclamation
.triangle-exclamation {
  .fa-icon-regular(@fa-var-triangle-exclamation);
}

// Light style of newspaper
.newspaper {
  .fa-icon-light(@fa-var-newspaper);
}

// Thin style of paintbrush-fine
.paintbrush-fine {
  .fa-icon-thin(@fa-var-paintbrush-fine);
}

// Duotone Solid style of camera-retro
.camera-retro {
  .fa-icon-duotone(@fa-var-camera-retro);
}

// Duotone Regular style of camera-retro
.camera-retro {
  .fa-icon-regular(@fa-var-camera-retro);
  .fa-family-duotone();
}

// Twitter brand icon
.twitter {
  .fa-icon-brands(@fa-var-twitter);
}

// Sharp Solid style of trash
.trash {
  .fa-icon-solid(@fa-var-trash);
  .fa-family-sharp(); // define Sharp family
}

// Sharp Regular style of trash
.trash {
  .fa-icon-regular(@fa-var-trash);
  .fa-family-sharp(); // define Sharp family
}

// Classic Solid style of trash
.trash {
  .fa-icon-solid(@fa-var-trash);
  .fa-family-classic(); // explicity setting Classic family (optional since this is Font Awesome's default)
}

// Sharp Duotone Solid style of trash
.trash {
  .fa-icon-solid(@fa-var-trash);
  .fa-family-sharp-duotone(); // define Sharp Duotone family
}

Style Mixins

To use the style mixins, you’ll want to:

1. Choose the right mixin for your desired style style.
2. Pass in the Less variable for the icon you want to display.

Style Mixin	Availability	What Style Renders
fa-icon-brands()	Free Plan	Brands
fa-icon-solid()	Free Plan	Solid
fa-icon-regular()	Pro only	Regular
fa-icon-duotone()	Pro only	Duotone
fa-icon-light()	Pro only	Light
fa-icon-thin()	Pro only	Thin

Style Mixins Include Set Up Styles Too!

These style mixins also handle the basic rendering styles that we bundle in our toolkit to make sure icons display perfectly in their context and in browsers.

Family Mixins

If you’re using our mixins to render an icon in a specific family, like our Sharp family of styles, you’ll need to reference the right family mixin (e.g. .fa-family-sharp). Classic is our default family of styles, so there’s no need to set it with a family mixin unless you’re trying to explicitly set to override a previous family.

Family Mixin	Availability	What Style Renders
fa-family-classic()	Free Plan	Classic when used with other style mixins
fa-family-sharp()	Pro only	Sharp when used with other style mixins
fa-family-duotone()	Pro only	Duotone when used with other style mixins
fa-family-sharp-duotone()	Pro only	Sharp Duotone when used with other style mixins

---

A More Manual Custom CSS Approach

If you’d rather a more customizable approach when right your styling rules, we’ve made the utilties used in the style mixins available to get the same rendering results.

To write manual rules, you’ll want to:

1. Get the core set up styling of icons by adding .fa-icon;
2. Use .fa-solid; to include the styling to render the icon in the Solid style (similar syntax for other styles)
3. Use .fa-classic; or .fa-sharp; to include the styling to render the icon in a specific family (Classic is set by default)
4. In a ::before pseudo-element rule, use icon variable names to make including an icon’s Unicode values a little easier. This is similar in syntax to adding icons via pseudo-elements

// Solid style of user
.user {
  .fa-icon;
  .fa-solid;

  &::before {
    --fa: @fa-var-user;
    --fa--fa: %("%s%s", @fa-var-user, @fa-var-user);
  }
}

// Regular style of triangle-exclamation
.triangle-exclamation {
  .fa-icon;
  .fa-regular;

  &::before {
    --fa: @fa-var-triangle-exclamation;
    --fa--fa: %("%s%s", @fa-var-triangle-exclamation, @fa-var-triangle-exclamation);
  }
}

// Light style of newspaper
.newspaper {
  .fa-icon;
  .fa-light;

  &::before {
    --fa: @fa-var-newspaper;
    --fa--fa: %("%s%s", @fa-var-newspaper, @fa-var-newspaper);
  }
}

// Thin style of paintbrush-fine
.paintbrush-fine {
  .fa-icon;
  .fa-thin;

  &::before {
    --fa: @fa-var-paintbrush-fine;
    --fa--fa: %("%s%s", @fa-var-paintbrush-fine, @fa-var-paintbrush-fine);
  }
}

// Duotone style of camera-retro
.camera-retro {
  .fa-icon;
  .fa-duotone;

  &::before {
    --fa: @fa-var-camera-retro;
    --fa--fa: %("%s%s", @fa-var-camera-retro, @fa-var-camera-retro);
  }
}

// Twitter brand icon
.twitter {
  .fa-icon;
  .fa-brands;

  &::before {
    --fa: @fa-var-twitter;
    --fa--fa: %("%s%s", @fa-var-twitter, @fa-var-twitter);
  }
}

// Sharp Solid style of trash
.trash {
  .fa-icon;
  .fa-solid;
  .fa-sharp; // define Sharp family

  &::before {
    --fa: @fa-var-trash;
    --fa--fa: %("%s%s", @fa-var-trash, @fa-var-trash);
  }
}

// Classic Solid style of trash
.trash {
  .fa-icon;
  .fa-solid;
  .fa-classic; // explicitly setting Classic family (optional since this is Font Awesome's default)

  &::before {
    --fa: @fa-var-trash;
    --fa--fa: %("%s%s", @fa-var-trash, @fa-var-trash);
  }
}

Included Mixins

	What It Does
.fa-icon()	A mixin that contains all of the base style set up for an icon (minus an icon’s style and specific name/unicode) compile
.fa-icon-solid() .fa-icon-regular() .fa-icon-light() .fa-icon-thin() .fa-icon-duotone() .fa-icon-brands()	Mixins that contain all of the base style set up for an icon along with a specific style to render the icon in
.fa-family-sharp() .fa-family-classic() .fa-family-duotone() .fa-family-sharp-duotone()	Mixins that, when combined with .fa-icon- style mixins, define the family of styles to be used.
.fa-size()	A mixin that calculates font size and vertical alignment for the relative sizing scale
.fa-sr-only()	A mixin that visually hides an element containing a text-equivalent for an icon while keeping it accessible to assistive technologies
.fa-sr-only-focusable()	A mixin that is used alongside .fa-sr-only() to show the element again when it’s focused (e.g. by a keyboard-only user)

Variables

Font Awesome’s Less version also leverages several Less variables that allow for easier set-up and customization of our styling toolkit.

Variable	What It Does
@fa-css-prefix	Sets the prefix (default set to fa) used on all styling toolkit CSS rules (e.g. fa-lg) + icon reference classes (e.g. fa-user)
@fa-style	Sets the default icon style (using @font-face weight)
@fa-style-family	Sets the default font-family used
@fa-display	Sets the display property (default set to inline-block) for rendered icons
@fa-font-display	Sets the font-display property for Font Awesome’s icon fonts
@fa-fw-width	Sets the width property for all fixed-width icons
@fa-inverse	Sets the color property of .fa-inverse
@fa-border-color	Sets the border-color property used in bordered icons
@fa-border-padding	Sets the padding property used in bordered icons
@fa-border-radius	Sets the border-radius property used in bordered icons
@fa-border-style	Sets the border-style property used in bordered icons
@fa-border-width	Sets the border-width property used in bordered icons
@fa-li-width	Sets the width property for fa-li elements when styling icons in a list icons
@fa-li-margin	Sets the margin-right property for fa-li elements when styling icons in a list icons
@fa-pull-margin	Sets the margin-left/margin-right property for pulled icons icons
@fa-primary-opacity	Sets the opacity of a duotone icon’s primary layer
@fa-secondary-opacity	Sets the opacity of a duotone icon’s secondary layer
@fa-size-scale-base	Sets the base step size that all other relative sizing steps are based on
@fa-size-scale-2xs	Sets the size of step used when relatively sizing icons with .fa-2xs
@fa-size-scale-xs	Sets the size of step used when relatively sizing icons with .fa-xs
@fa-size-scale-sm	Sets the size of step used when relatively sizing icons with .fa-sm
@fa-size-scale-lg	Sets the size of step used when relatively sizing icons with .fa-lg
@fa-size-scale-xl	Sets the size of step used when relatively sizing icons with .fa-xl
@fa-size-scale-2xl	Sets the size of step used when relatively sizing icons with .fa-2xl
@fa-stack-vertical-align	Sets the vertical-align property of stacked icons
@fa-stack-width	Sets the width property of stacked icons
@fa-stack-z-index	Sets the z-index property of stacked icons
@fa-font-path	Sets the location of Font Awesome’s webfonts folder and assets.