Css 和 bootstrap.css 之间的区别是什么？

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最佳答案

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.