Fizz Buzz in CSS

By Susam Pal on 06 Dec 2025

What is the smallest CSS code we can write to print the Fizz Buzz sequence? I think it can be done in four lines of CSS as shown below:

li { counter-increment: n } li:not(:nth-child(5n))::before { content: counter(n) } li:nth-child(3n)::before { content: "Fizz" } li:nth-child(5n)::after { content: "Buzz" }

Here is a complete working example: css-fizz-buzz.html.

I am neither a web developer nor a code-golfer. Seasoned code-golfers looking for a challenge can probably shrink this solution further. However, such wizards are also likely to scoff at any mention of counting lines of code, since CSS can be collapsed into a single line. The number of characters is probably more meaningful. The code can also be minified slightly by removing all whitespace:

$ curl -sS https://susam.net/css-fizz-buzz.html | sed -n '/counter/,/after/p' | tr -d '[:space:]' li{counter-increment:n}li:not(:nth-child(5n))::before{content:counter(n)}li:nth-child(3n)::before{content:"Fizz"}li:nth-child(5n)::after{content:"Buzz"}

This minified version is composed of 152 characters:

$ curl -sS https://susam.net/css-fizz-buzz.html | sed -n '/counter/,/after/p' | tr -d '[:space:]' | wc -c 152

If you manage to create a shorter solution, please do leave a comment.