What is the difference between bootstrap.css and bootstrap-theme.css found in the bootstrap file when we download bootstrap?
Introduction to Bootstrap-Theme: Bootstrap themes are packages of HTML, CSS, and js that provide styling, UI components, and page layouts to use in a web project. The templates are already written by the developer which is used to adapt the script and easy learning of an individual for building a new website.
They have exactly the same function, but the . min. css version has been minified, meaning all whitespace has been removed to reduce file size and increase speed.
With themes, we've made most, if not all, of the design decisions upfront, so the product is ready to modify with your own content and publish. Bootstrap templates are scaffolds, blueprints, or base layouts that offer no custom styling past what is already included with the base Bootstrap framework.
CSS and Bootstrap are free, front-end development frameworks designed to help developers build websites faster and easier. Major differences are that W3. CSS is a less widely used framework that only uses CSS, while Bootstrap is a more widely used framework that uses CSS and JavaScript.
bootstrap.css
is the core css for BootStrap that defines all the style for various controls/components, where as bootstrap-theme.css
defines the themes (gradient/animation) for buttons,dropdown menu,navbar,progressbar,panels.
Most of the times adding bootstrap.css
is enough for bootstrap to work, but for gradient/animation, you can use bootstrap-theme.css
.
You can see the difference on https://getbootstrap.com/docs/3.4/css/#buttons and then click on "Preview theme" from the very bottom of the menu on the right-hand side of the page.
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