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stackoverflow.com › questions › 43613619 › what-does-global-colon-global-do

The :global operator is used in CSS Modules. Modular CSS uses a CSS Modules compiler to scope CSS styles within their respective modules (e.g., React component).

Here's an example from a React module (in the file ErrorMessaging.less for the ErrorMessaging.jsx React component):

:global(.ocssContainer) {
  .ui_column {
    padding-left: 0;
  }
}

This gets compiled into:

  .ErrorMessaging__alertContainer--1I-Cz .ocssContainer .ErrorMessaging__ui_column--3uMUS {
    padding-left: 0;
  }

But now I add a :global modifier onto .ui_column:

:global(.ocssContainer) {
  :global(.ui_column) {
    padding-left: 0;
  }
}

And this is what it compiles to:

  .ErrorMessaging__alertContainer--1I-Cz .ocssContainer .ui_column {
    padding-left: 0;
  }

Now .ui_column can apply to any child element with that style, including in a child React component, and not just .ui_column elements that are part of the ErrorMessaging React component.

Answer from JohnK on Stack Overflow

Every-layout

every-layout.dev › rudiments › global-and-local-styling

Global and local styling: Every Layout

We use a very on the nose naming convention, which emulates CSS declaration structure: property-name:value. This helps with recollection of utility class names, especially where the value echos the actual value, like .text-align:center. Sharing values between elements and utilities is a job for custom properties. Note that we’ve made the custom properties themselves globally available by attaching them to the :root (<html>) element:

Gatsby

gatsbyjs.com › documentation › how-to guides › styling › standard css

Standard Styling with Global CSS Files | Gatsby

In these cases, you can include a global stylesheet using gatsby-browser.js. NOTE: This approach does not work with CSS-in-JS. Use shared components to share styles in CSS-in-JS. First, open a new terminal window and run the following commands to create a new default Gatsby site and start the development server: Second, create a CSS file and define any styles you wish. An example...

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css - What does :global (colon global) do? - Stack Overflow

The :global operator is used in CSS Modules. Modular CSS uses a CSS Modules compiler to scope CSS styles within their respective modules (e.g., React component). Here's an example from a React module (in the file ErrorMessaging.less for the ErrorMessaging.jsx React component): More on stackoverflow.com

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Videos

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