Contents
What do two dashes mean in CSS?
Properties that begin with a double-dash won’t ever be used by CSS itself, so they can be used by other people. Since these custom properties aren’t declared with any new syntax, they are simply ignored by CSS parsers that don’t know about them.
How do you define a variable in CSS?
Custom properties (sometimes referred to as CSS variables or cascading variables) are entities defined by CSS authors that contain specific values to be reused throughout a document.
What is the purpose of CSS variables?
CSS variables, more accurately known as CSS custom properties, are landing in Chrome 49. They can be useful for reducing repetition in CSS, and also for powerful runtime effects like theme switching and potentially extending/polyfilling future CSS features.
What is the difference between CSS variables and preprocessor Sass less stylus variables?
That was the SCSS variant of Sass, but all CSS preprocessors offer the concept of variables: Stylus, Less, PostCSS, etc. This is now valid CSS. The variable was part of the preprocessor language, not CSS itself. It allows you to work with variables directly in CSS.
What are CSS properties?
The CSS properties specifies what to style of the targeted HTML elements. This example creates a CSS rule that targets all div elements, and the set the CSS properties border and font-size for the targeted elements.
Should I use CSS or sass variables?
CSS variables are included in the CSS output. CSS variables can have different values for different elements, but Sass variables only have one value at a time. Sass variables are imperative, which means if you use a variable and then change its value, the earlier use will stay the same.
When do you hyphenate a word in CSS?
The hyphens CSS property specifies how words should be hyphenated when text wraps across multiple lines. It can prevent hyphenation entirely, hyphenate at manually-specified points within the text, or let the browser automatically insert hyphens where appropriate. The source for this interactive example is stored in a GitHub repository.
What do you need to know about CSS variables?
CSS Variables — or custom properties — are variables that we use to store and transfer their values to different CSS properties and can be reused throughout a document. CSS Variables are custom-made, meaning we can give them any name, follows a specific pattern.
How are the hyphenation rules determined in HTML?
Hyphenation rules are language-specific. In HTML, the language is determined by the lang attribute, and browsers will hyphenate only if this attribute is present and if an appropriate hyphenation dictionary is available.
Is the hyphen still rendered when the line is broken?
Even if the line is not actually broken at that point, the hyphen is still rendered. An invisible, ” s oft” hy phen. This character is not rendered visibly; instead, it marks a place where the browser should break the word if hyphenation is necessary. In HTML, use to insert a soft hyphen.