What is the best way to add a unique style to a third-party component within a React component without impacting the styles of other components?

While working with a dropdown component from react-bootstrap, I encountered a situation where I needed to change the font size of the context menu in just one specific component.

To achieve this, I decided to create a separate css file named panel.css and include it in my component using import './panel.css;.

Within the panel.css file, I targeted the Select-menu-outer class and applied a custom font size like so:

.Select-menu-outer { font-size: 12px }

Although this solution worked as intended, the downside was that it affected the font size of all other dropdowns throughout the entire application.

I considered utilizing CSS Modules by importing styles from panel.css and assigning the className dynamically, but due to the third-party nature of the library component, I hesitated to implement this approach.

Do you have any suggestions for a more effective way to implement this customization?

javascripthtmlcssreactjs

Answer №1

To modify the appearance of a dropdown menu, you can add a new class called .Select-menu-outer-size to the desired dropdown list.

In your CSS file, include the following code:

.Select-menu-outer-size { font-size: 12px !important}

The use of !important ensures that this styling rule takes precedence over any conflicting styles.

JavaScript can also be utilized for this task!

Assuming the target dropdown is the third one on the page and has the class .Select-menu-outer, you can achieve this with JavaScript:

var addclass = document.getElementsByClassName("Select-menu-outer")[2];
addclass.classList.add("Select-menu-outer-size");

Don't forget to apply the corresponding CSS rules:

.Select-menu-outer-size { font-size: 12px !important}

Note: In JavaScript, index starts at 0, so the third element would be accessed using [2]. Click here to learn more about getElementByClassName method from W3Schools.

Answer №2

To customize the appearance of a particular menu, you have two options.

One option is to apply inline styles directly to that menu element in order to override the default styling.

Alternatively, you can give that specific menu tag an id attribute (e.g., id="outer-menu") and then access it using #outer-menu in your CSS code.

Note that ids take precedence over class names, so using an id is likely to result in the desired style taking effect.

Answer №3

If you're utilizing React Bootstrap...

Utilize the bsPrefix attribute to personalize the class of your component, allowing for CSS styling adjustments.

Modify the base class name and prefix of modifier class names for the underlying component's CSS. This feature provides an option for working with extensively customized Bootstrap CSS.

Reference: React-Bootstrap documentation

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