Creating CSS from Angular stylesheets?

Are there any methods available to view the CSS corresponding to SCSS when using SCSS as the preprocessor for Angular?

You can find a solution here: When using angular with scss, how can I see the translated css?

The answer suggests using the --extract-css option, but it seems that this option has been deprecated:

sandbox/project $ ng build --extract-css
Unknown option: '--extract-css'

Any ideas on what to do next?

Answer №1

Exploring Styles in Angular Build Files

When you delve into your build files, you'll discover that the styles of components are compiled within the main.js file. To locate it, simply navigate to the network tab of your browser's developer tools.

While you may come across a file named styles.css, bear in mind that this will solely encompass your global styles. This segregation is attributed to Angular's view-encapsulation approach towards styling per component. It’s worth noting that altering the view-encapsulation strategy (Emulated, ShadowDOM, None) may bring about changes in Angular’s behavior.

It's advisable to proceed with caution when considering such modifications.

If desired, you can convert your SASS files to CSS through a command-line tool that can be installed following the instructions provided on the official Sass website. Alternatively, there are online SASS converters like this one that you can utilize.

For those focused solely on global styles, here's a reference on how to switch from SCSS to CSS format in your browser.

Sample Scenario

app.component.scss

p {
  background-color: orange;
}

styles.scss

@import 'default';

p {
   color: red;

   &:hover {
      color: blue;
   }
}

default.scss

h1 {
  color: teal;
}

Generated Output in Build

styles.css:

h1 {
  color: teal;
}

p {
  color: red;
}

p:hover {
  color: blue;
}

main.js:

AppComponent.ɵfac = function AppComponent_Factory(t) { return new (t || AppComponent)(); };
AppComponent.ɵcmp = /*@__PURE__*/ _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵdefineComponent"]({ type: AppComponent, selectors: [["app-root"]], decls: 1, vars: 0, template: function AppComponent_Template(rf, ctx) { if (rf & 1) {
        _angular_core__WEBPACK_IMPORTED_MODULE_0__["ɵɵelement"](0, "lib-my-lib");
    } }, directives: [my_lib__WEBPACK_IMPORTED_MODULE_1__.MyLibComponent], styles: ["p[_ngcontent-%COMP%] {\n  background-color: orange;\n}\n/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbImFwcC5jb21wb25lbnQuc2NzcyIsIi4uXFwuLlxcLi5cXC4uXFxBbmd1bGFyJTIwUHJvamVjdHNcXGxpYi1leGFtcGxlXFxzcmNcXGFwcFxcYXBwLmNvbXBvbmVudC5zY3NzIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiJBQUFBO0VBQ0Usd0JBQUE7QUNDRiIsImZpbGUiOiJhcHAuY29tcG9uZW50LnNjc3MiLCJzb3VyY2VzQ29udGVudCI6WyJwIHtcclxuICBiYWNrZ3JvdW5kLWNvbG9yOiBvcmFuZ2U7XHJcbn1cclxuIiwicCB7XG4gIGJhY2tncm91bmQtY29sb3I6IG9yYW5nZTtcbn0iXX0= */"] });

*Take note of the orange background-color highlighted in the final line.

Answer №2

In addition to the answer that was accepted, I took the time to elaborate on a crucial point in a recent blog post. It may not be immediately apparent when using Chrome Developer Tooling that styles.scss is the first tab opened, while styles.css is located right next to it.

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