Css Conditional Variable. MDN Web Docs Using CSS custom properties (variables) Custom

MDN Web Docs Using CSS custom properties (variables) Custom properties (sometimes referred to as CSS variables or cascading CSS authors have long sought a way to implement conditional logic directly within their stylesheets. k. Conclusion While CSS Custom Properties lack native conditional logic, workarounds like cascading, media queries, and JavaScript integration make dynamic styling possible today. The if() function brings real conditional styling — no hacks, no JS workarounds. CSS Custom Properties: Variables with Superpowers CSS custom properties (variables) can create sophisticated conditional systems when combined with other techniques. Conclusion While CSS Custom Properties lack native conditional In this case, we’re looking for a style() condition where a CSS variable called --variant is declared and is set to a value of success, and: if --variant is set to success, we set the Using conditional CSS Variables to make it easier to style your site for light mode, dark mode, and more. In this trivial example, you want to apply a padding based on a certain Currently I have many postcss files item1. A downside of this method is that since the values behind the --variant-success, --variant-warning, etc variables are specific to the - This is where the concept of conditionally applying a class in CSS comes into play. This allows for smarter While I was not the first to propose an inline conditional syntax, I did try and scope down the various nonterminating discussions into an MVP that can actually be implemented 19 CSS itself doesn't have conditional statements, but here's a hack involving custom properties (a. , --is-dark: 0 | 1 for math-based conditions). So the condition here can be either true or false and based on the statements/style will get executed. The if() CSS function allows different values to be set for a property depending on the result of a conditional test. "css variables"). I want it so that according to this A downside of this method is that since the values behind the --variant-success, --variant-warning, etc variables are specific to the - Document variables: Track conditional variables in comments (e. @else if You can also choose whether to evaluate an @else rule’s block by writing it @else if <expression> { }. The test can be based on a style query, a media Conditional logic is a familiar concept to anyone who has written a programming language. Tagged with webdev, beginners, Using CSS custom properties (variables) Custom properties (sometimes referred to as CSS variables or cascading variables) are entities defined by CSS authors that represent CSS Conditional Rules apply CSS styles only when certain conditions are met. Using conditional CSS Variables to make it easier to style your site for light mode, dark mode, and more. Learn how to simulate conditional statements in CSS using calc, min, and max to create dynamic responsive styles without if/else clauses. CSS variables have access to the DOM, which means that you can create variables with local or global “Why should JavaScript have all the logic?” — Every CSS dev, ever. pcss etc each one styling specific components. pcss, item2. Conditional expressions may contain boolean operators (and, or, not). Languages like JavaScript or Python It’s 2025, and CSS finally thinks logically. Document variables: Track conditional variables in comments (e. By conditionally applying a class, you can select In the case of CSS custom properties/variables there is also a fourth option: 'undefined' or simply said: as if it does not exist at all because there simply is no HTML default While CSS itself doesn’t have conditional logic like programming languages, you can achieve conditional styling using CSS Variables The var() function is used to insert the value of a CSS variable. The idea is that I have a variable that I replace when the site is run to generate the right style-sheet. Here’s how to CSS variables can be made conditional with @media and other conditional rules As with other properties, you can change the value Hi there! Conditional formatting in CSS allows you to adapt styles dynamically based on changes in browser, device, user interaction, and more. . The Learn how to implement conditional logic in CSS using techniques like :has(), custom properties, @supports, media queries, and I would like to use conditions in my CSS. a. In some of them I need to do some custom changes to the CSS CSS actually does have variables. g. If Learn about the new CSS if function, which enables a cleaner developer interface for dynamic styles like style queries and media queries. The CSS conditional rules module defines CSS media and support queries, enabling you to define styles that are only applied if specific conditions are met.

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