Why Can’t I Override Bootstrap Css

CSS Programming

Have you ever wondered why you can’t seem to override Bootstrap CSS? As a web developer myself, I’ve faced this frustrating issue countless times. In this article, I’ll delve into the reasons behind this challenge and provide some insights on how to overcome it.

The Power of Bootstrap

Bootstrap, the popular front-end framework developed by Twitter, has revolutionized web development. Its pre-built components and responsive grid system make it a go-to choice for many developers. However, one of the reasons why it’s difficult to override Bootstrap CSS is because of its specificity and the way it is structured.

When styling elements using CSS, the specificity of the selectors determines which styles will be applied. Specificity is calculated based on the type of selector, class, and id used. Bootstrap CSS selectors are highly specific, making it challenging to override them with less specific selectors.

Order of Importance

In addition to specificity, the order of importance also plays a role in overriding Bootstrap CSS. The order in which CSS rules are declared determines which styles will be applied. When Bootstrap CSS is included before your custom CSS, it takes precedence. This means that even if you write more specific selectors in your custom CSS, they will be overridden by Bootstrap.

One way to address this issue is to ensure that your custom CSS is included after the Bootstrap CSS. By including your custom styles in a separate stylesheet or inline directly in your HTML, you can ensure that they will be applied last and have a better chance of overriding the Bootstrap styles.

Using !important

Another approach to overriding Bootstrap CSS is to use the “!important” declaration. Adding this keyword to your CSS rule will give it the highest specificity, allowing it to override any other styles. However, using “!important” should be done sparingly as it can lead to difficult-to-maintain code and potential conflicts with other styles.

Addressing Specific Components

When dealing with specific Bootstrap components, it’s important to understand their structure and class names. Each component has its own set of classes and styles, which may require a different approach to override. By inspecting the HTML elements and their corresponding classes, you can identify which styles need to be overridden and apply your custom styles accordingly.


In conclusion, overriding Bootstrap CSS can be challenging due to its high specificity and the order of importance. By understanding these factors and implementing the appropriate strategies, such as adjusting the order of CSS, using “!important” sparingly, and targeting specific components, you can successfully override Bootstrap CSS and achieve the desired custom styling for your web projects.