Tips for preventing CSS conflicts when incorporating an Angular 6 application into another application

We recently developed an Angular 6 web application and now we want to seamlessly integrate it into one of our client's online store.

However, we are facing some CSS conflict issues:

For instance: - The webshop is built on Bootstrap 3 while our app uses Bootstrap 4. - Certain styles from the shop are taking precedence over our web app's styles. - Some of our web app's styles are overriding the webshop's CSS rules.

What would be the most effective solution to prevent these conflicts and achieve a harmonious integration?

javascriptcssangularbootstrap-4

Answer №1

To ensure smooth functioning throughout your project, it is advisable to stick to one version of Bootstrap. Mixing both Bootstrap 3 and Bootstrap 4 may lead to conflicts due to similar class names but distinct underlying CSS styles.

One way to tackle this issue is by enclosing the webshop within a designated div with a specific class and importing only the Bootstrap 3 CSS for this particular class, as demonstrated below in SASS:

.webshop {
    @import all-of-bootstrap3;
}

This approach confines Bootstrap 3 styling to elements within the wrapper, effectively overriding any conflicting styles. However, the most effective solution remains consistent use of the same Bootstrap version across the entire project.

Furthermore, you can also opt to group all components under a single class to enhance specificity, especially when catering to multiple clients.

If needed, you have the option to customize Bootstrap's CSS directly, detailed in this article: Customize Twitter Bootstrap Classnames

Answer №2

Great response courtesy of @doppelganger

Another approach could be to assign each app its own separate class, distinguishing one from the other by adding a class to the html tag.

To customize styles for one app specifically, you can do the following:

html.app1 .some-style {
  background-color: purple;
}

For the second app, implement styling like so:

html.app2 .some-style {
  background-color: teal;
}

If working with scss or similar technologies, implementing these changes should be simple as you can utilize nesting features.

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