安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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- Sass: Syntactically Awesome Style Sheets
Syntactically Awesome Style SheetsSass is the most mature, stable, and powerful professional grade CSS extension language in the world
- Sass: Sass Basics
Sass has two syntaxes! The SCSS syntax ( scss) is used most commonly It’s a superset of CSS, which means all valid CSS is also valid SCSS The indented syntax ( sass) is more unusual: it uses indentation rather than curly braces to nest statements, and newlines instead of semicolons to separate them All our examples are available in both
- Sass: Syntax
The Indented Syntax The indented syntax was Sass’s original syntax, so it uses the file extension sass Because of this extension, it’s sometimes just called "Sass" The indented syntax supports all the same features as SCSS, but it uses indentation instead of curly braces and semicolons to describe the format of the document
- Install Sass
The Sass team maintains two Node js packages for Sass, both of which support the standard JavaScript API The sass package is pure JavaScript, which is a little slower but can be installed on all platforms Node js supports The sass-embedded package wraps a JS API around the Dart VM, so it’s faster but only supports Windows, Mac OS, and Linux
- Sass: Breaking Change: Mixed Declarations
The Story So Far Historically, if you mixed together nested rules and declarations in Sass, it would pull all the declarations to the beginning of the rule to avoid duplicating the outer selector more than necessary For example:
- Sass: Dart Sass - sass-lang. com
Dart Sass Dart Sass is the primary implementation of Sass, which means it gets new features before any other implementation It’s fast, easy to install, and it compiles to pure JavaScript which makes it easy to integrate into modern web development workflows Find out more or help out with its development on GitHub
- Sass: Parent Selector
The parent selector, , is a special selector invented by Sass that’s used in nested selectors to refer to the outer selector It makes it possible to re-use the outer selector in more complex ways, like adding a pseudo-class or adding a selector before the parent
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