CSS 预处理器 CSS 预处理器 我用 Sass。使用时应当灵活运用 。用 Sass 可以令你的 CSS 更强大，但是不要嵌套得太复杂。在 Vanilla CSS 中，只在必要的地方用嵌套即可，例如： . header {} . header . site - nav {} . header . site - nav li {} ...

Z-index Example Overlays Component approach CSS Sass maps Sass utilities API Added in v5.3 Z-index Use our low-level z-index utilities to quickly change the stack level ...

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使用预处理器 Sass Sass vs SCSS 共享全局变量 Less Stylus PostCSS Babel 排除 node_modules TypeScript Pug 使用预处理器 在 webpack 中，所有的预处理器需要匹配对应的 loader。Vue Loader 允许你使用其它 webpack loader 处理...

Base classes Modifiers Responsive Creating your own Base classes Bootstrap’s components are largely built with a base-modifier nomenclature. We group as many shared properti...