I'm using angular-cli to build an Angular 4 app. I would like to use ng-bootstrap to include Bootstrap 4. However I would also like to customise Bootstrap's scss variables in my build as described at http://v4-alpha.getbootstrap.com/getting-started/options/.
How can I do this?
The accepted answer no longer works. If you are like me you are a new angular user trying to add bootstrap to your project and following the angular-cli wiki here: https://github.com/angular/angular-cli/wiki/stories-include-bootstrap (as pasted in the accepted answer).
The problem is discussed here: https://github.com/twbs/bootstrap/issues/23112
Short version: The theme colors are now in a nested object so things like $brand-primary no longer apply - we must now change $theme-colors. It works, but we now have to replace the entire object even if we only want to edit one variable.
$gray-100: #f8f9fa;
$gray-600: #868e96;
$gray-800: #343a40;
$red: #dc3545;
$yellow: #ffc107;
$green: #006600; // This is the only variable I wanted to change
$cyan: #17a2b8;
$theme-colors: (
primary: $green,
secondary: $gray-600,
success: $green,
info: $cyan,
warning: $yellow,
danger: $red,
light: $gray-100,
dark: $gray-800
);
Angular CLI stories gives an answer at https://github.com/angular/angular-cli/wiki/stories-include-bootstrap which I will summarise below. Note that I am yet to find out how this interacts with ng-bootstrap
.
ng new my-app --style=scss
cd my-app
npm install bootstrap@next --save
Create an empty file _variables.scss
in src/
which is where your style modifications will go.
In styles.scss
add the following:
@import 'variables';
@import '../node_modules/bootstrap/scss/bootstrap';
Open app.component.html and add the following markup:
<button class="btn btn-primary">Test Button</button>
With the application configured, run ng serve
to run your application in develop mode. In your browser navigate to the application localhost:4200
.
Verify the bootstrap styled button appears. To ensure your variables are used open _variables.scss
and add the following:
$brand-primary: red;
Return the browser to see the font colour changed.
It took me a while to work out so, in hope it helps someone, these are the steps I took to create my own custom style that overrides ng-bootstrap
.
scss
for the style (not .sass!)ng add
as detailed in the installation section (not npm install
).This added a line in my styles.scss
file like so:
/* Importing Bootstrap SCSS file. */
@import '~bootstrap/scss/bootstrap';
@import
which then meant I could change the theme as desired.As for finding the variables to override, I first found them using a save from boostrap magic, but they could be found directly in node_modules\bootstrap\scss\_variables.scss
Example working styles.scss
with override for the primary color:
/* You can add global styles to this file, and also import other style files */
$primaryColor: hotpink;
$theme-colors: (primary: $primaryColor);
/* Importing Bootstrap SCSS file. */
@import '~bootstrap/scss/bootstrap';
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