--- title: Playing With CodePen slideVars | daily.dev description: CodePen has released slideVars, a built-in tool for creating interactive demos with adjustable parameters. By importing the library and calling... canonical: https://daily.dev/posts/a8b1r4vbq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Playing With CodePen slideVars | daily.dev og:description: CodePen has released slideVars, a built-in tool for creating interactive demos with adjustable parameters. By importing the library and calling... og:url: https://daily.dev/posts/a8b1r4vbq og:image: https://api.daily.dev/og/posts/A8b1r4vBQ.png og:image:alt: Post cover image og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Playing With CodePen slideVars **[CSS](https://daily.dev/sources/iheartcss)** · [@geoffgraham](https://daily.dev/geoffgraham) · 1 upvotes · 0 comments ## Summary CodePen has released slideVars, a built-in tool for creating interactive demos with adjustable parameters. By importing the library and calling slideVars.init(), it automatically detects CSS variables and generates a control panel. The tool supports manual configuration for input types, value ranges, default values, and CSS numeric units. Variables must be declared on the :root element by default, though custom scoping is possible with manual setup. The control panel can be repositioned using a custom HTML element or CSS styling. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Designing In Variables: How Control Panels Accelerate The Way We Design](https://daily.dev/posts/designing-in-variables-how-control-panels-accelerate-the-way-we-design-b0eolmuln) · Atlassian · 0 upvotes · 0 comments - [Wiggly/Wavy Input Range Slider](https://daily.dev/posts/wiggly-wavy-input-range-slider-3yabli90t) · CSS Tip · 40 upvotes · 2 comments - [7 Game-Changing Web UI Features You Can Start Using Today](https://daily.dev/posts/7-game-changing-web-ui-features-you-can-start-using-today-lanxczirv) · Amit Merchant · 2 upvotes · 0 comments - [Wanna see a CSS magic trick?](https://daily.dev/posts/wanna-see-a-css-magic-trick--wta2tfzuo) · Stack Overflow Blog · 76 upvotes · 4 comments --- Tags: [#webdev](https://daily.dev/tags/webdev), [#javascript](https://daily.dev/tags/javascript), [#css](https://daily.dev/tags/css) [View this post on daily.dev](https://daily.dev/posts/a8b1r4vbq) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"DiscussionForumPosting","mainEntityOfPage":"https://daily.dev/posts/a8b1r4vbq","headline":"Playing With CodePen slideVars","text":"Shared: Playing With CodePen slideVars","url":"https://daily.dev/posts/a8b1r4vbq","datePublished":"2026-01-14T16:07:01.472Z","dateModified":"2026-01-14T16:07:01.477Z","author":{"@type":"Person","name":"Geoff","url":"https://daily.dev/geoffgraham","image":"https://media.daily.dev/image/upload/s--mXp5yqc7--/f_auto/v1746709785/avatars/avatar_JAehePvXH6nu6u9F4E9YV?_a=BAMClqUq0","description":"Certified Neat Freak","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":940}},"image":"https://media.daily.dev/image/upload/s--VDukGCjf--/f_auto/v1722860399/public/Placeholder%2002","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"sharedContent":{"@type":"WebPage","url":"https://api.daily.dev/r/S5dOUJVb6"},"isPartOf":{"@type":"WebPage","url":"https://daily.dev/squads/iheartcss","name":"CSS"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"CSS","item":"https://daily.dev/squads/iheartcss"},{"@type":"ListItem","position":3,"name":"Playing With CodePen slideVars"}]} ```