March 1Mar 1 Administrators CSS Counters CSS Counters With CSS counters, you can create dynamic numbering of elements (like headings, sections, or list items) without using JavaScript. CSS counters are "variables" maintained by CSS, and their values can be incremented (or decremented) by CSS rules. Pizza Hamburger Hotdogs CSS Automatic Numbering With Counters CSS counters are like "variables". The variable values can be incremented (or decremented) by CSS rules. To work with CSS counters we will use the following properties: counter-reset - Creates or resets a counter counter-increment - Increments or decrements a counter content - Inserts generated content counter() - Adds the value of a counter to an element To use a CSS counter, it must first be created with the counter-reset property. CSS Increase and Decrease Counter The following example creates a counter for the page (in the body selector), then it increments the counter value by 1 for each <h2> element: Example body { counter-reset: section;}h2::before { counter-increment: section; content: "Section " counter(section) ": ";} Try it Yourself » Decrementing a Counter The counter-increment property has a second parameter. The default value is 1. To decrease the counter value, you can set it to -1. Example body { counter-reset: section;}h2::before { counter-increment: section -1; content: "Section " counter(section) ": ";} Try it Yourself » Incrementing by Custom Values You can increment the counter by any value. Here we increment by 2: Example body { counter-reset: section;}h2::before { counter-increment: section 2; content: "Section " counter(section) ": ";} Try it Yourself » ★ +1 Sign in to track progress
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