---
title: safeCSS
description: Declares the provided string as a known "safe" CSS string.
godocref: https://golang.org/src/html/template/content.go?s=919:929#L15
date: 2017-02-01
publishdate: 2017-02-01
lastmod: 2017-02-26
categories: [functions]
menu:
  docs:
    parent: "functions"
keywords: [style,css,strings]
signature: ["safeCSS INPUT"]
workson: []
hugoversion:
relatedfuncs: [safeHTML,safeHTMLAttr,]
deprecated: false
aliases: []
---

In this context, *safe* means CSS content that matches any of the following:

1. The CSS3 stylesheet production, such as `p { color: purple }`.
2. The CSS3 rule production, such as `a[href=~"https:"].foo#bar`.
3. CSS3 declaration productions, such as `color: red; margin: 2px`.
4. The CSS3 value production, such as `rgba(0, 0, 255, 127)`.

Example: Given `style = "color: red;"` defined in the front matter of your `.md` file:

* <span class="good">`<p style="{{ .Params.style | safeCSS }}">…</p>` &rarr; `<p style="color: red;">…</p>`</span>
* <span class="bad">`<p style="{{ .Params.style }}">…</p>` &rarr; `<p style="ZgotmplZ">…</p>`</span>

{{% note "ZgotmplZ" %}}
"ZgotmplZ" is a special value that indicates that unsafe content reached a CSS or URL context.
{{% /note %}}