From: Gaël Poupard Date: Mon, 17 Feb 2020 18:40:08 +0000 (+0100) Subject: docs(theming): improve headings hierarchy under Sass → Functions (#30207) X-Git-Tag: v5.0.0-alpha1~432 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48c8697fed182cbb8bbd8252de12d14c7d7d5063;p=thirdparty%2Fbootstrap.git docs(theming): improve headings hierarchy under Sass → Functions (#30207) --- diff --git a/site/content/docs/4.3/getting-started/theming.md b/site/content/docs/4.3/getting-started/theming.md index e8813045ab..ad028b7923 100644 --- a/site/content/docs/4.3/getting-started/theming.md +++ b/site/content/docs/4.3/getting-started/theming.md @@ -189,7 +189,7 @@ In practice, you'd call the function and pass in two parameters: the name of the } {{< /highlight >}} -### Color contrast +#### Color contrast An additional function we include in Bootstrap is the color contrast function, `color-yiq`. It utilizes the [YIQ color space](https://en.wikipedia.org/wiki/YIQ) to automatically return a light (`#fff`) or dark (`#111`) contrast color based on the specified base color. This function is especially useful for mixins or loops where you're generating multiple classes. @@ -219,11 +219,11 @@ You can also specify a base color with our color map functions: } {{< /highlight >}} -## Escape SVG +#### Escape SVG We use the `escape-svg` function to escape the `<`, `>` and `#` characters for SVG background images. These characters need to be escaped to properly render the background images in IE. -## Add and Subtract functions +#### Add and Subtract functions We use the `add` and `subtract` functions to wrap the CSS `calc` function. The primary purpose of these functions is to avoid errors when a "unitless" `0` value is passed into a `calc` expression. Expressions like `calc(10px - 0)` will return an error in all browsers, despite being mathematically correct.