SASS is the most recommended method to customize Bootstrap. It is best to use CSS overrides for simple Bootstrap customizations, but we recommend you to try the SASS method when it comes to making extensive customizations. Using selectors that are not specific will not give you desired results, as the component will end up taking the default bootstrap styles even though we have written the custom styles in custom.css file. We will need to use selectors that are as specific as the ones in the bootstrap.css. Here is an image of the resultant customized Bootstrap Card componentĪnother important point to keep in mind when overriding the bootstrap styles is CSS specificity. * removes border from card and adds box-shadow property */īorder: none box-shadow: 0 1px 20px 0 rgba(0,0,0.1) } The following image shows a default bootstrap card.Īdd the following lines of code in the custom.css file. In this example, we will be removing the border and including a box-shadow to the Bootstrap card component by using custom.css. īootstrap card component comes with a border by default.
This is exactly why the custom.css reference should follow after Bootstrap.css. So, the final definition of a particular CSS rule will override the previously defined rules when the CSS selectors & properties match. You need to remember that order matters in CSS. This will guarantee that the original Bootstrap style files will remain unaltered. Using CSS OverrideĬSS Customizations should be added to a separate custom.css file to ensure maintainability. Here you can find a step by step guide on how to customize Bootstrap with both of the above-mentioned methods. Using CSS is the simplest and robust way to do so whereas using SASS for Bootstrap customization is actually an advanced method.
There are two easy and effective ways through which you can customize Bootstrap. In addition, default Bootstrap CSS styles are also customized to extend Bootstrap classes with new custom classes and to change Bootstrap grid layouts. Most developers do it to make changes to Bootstrap fonts, borders, colors, or other Bootstrap styles. Developers often override or customize default Bootstrap CSS styles when working on web development projects.
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