update to bootstrap 5.0.2

1 files changed, 78 insertions, 0 deletions

diff --git a/vendor/twbs/bootstrap/site/content/docs/5.0/utilities/background.md b/vendor/twbs/bootstrap/site/content/docs/5.0/utilities/background.md
new file mode 100644
index 000000000..7b1b48140
--- /dev/null
+++ b/vendor/twbs/bootstrap/site/content/docs/5.0/utilities/background.md
@@ -0,0 +1,78 @@
+---
+layout: docs
+title: Background
+description: Convey meaning through `background-color` and add decoration with gradients.
+group: utilities
+toc: true
+---
+
+## Background color
+
+Similar to the contextual text color classes, set the background of an element to any contextual class. Background utilities **do not set `color`**, so in some cases you'll want to use `.text-*` [color utilities]({{< docsref "/utilities/colors" >}}).
+
+{{< example >}}
+{{< colors.inline >}}
+{{- range (index $.Site.Data "theme-colors") }}
+<div class="p-3 mb-2 bg-{{ .name }}{{ if .contrast_color }} text-{{ .contrast_color }}{{ else }} text-white{{ end }}">.bg-{{ .name }}</div>
+{{- end -}}
+{{< /colors.inline >}}
+<div class="p-3 mb-2 bg-body text-dark">.bg-body</div>
+<div class="p-3 mb-2 bg-white text-dark">.bg-white</div>
+<div class="p-3 mb-2 bg-transparent text-dark">.bg-transparent</div>
+{{< /example >}}
+
+## Background gradient
+
+By adding a `.bg-gradient` class, a linear gradient is added as background image to the backgrounds. This gradient starts with a semi-transparent white which fades out to the bottom.
+
+Do you need a gradient in your custom CSS? Just add `background-image: var(--bs-gradient);`.
+
+{{< markdown >}}
+{{< colors.inline >}}
+{{- range (index $.Site.Data "theme-colors") }}
+<div class="p-3 mb-2 bg-{{ .name }} bg-gradient{{ with .contrast_color }} text-{{ . }}{{ else }} text-white{{ end }}">.bg-{{ .name }}.bg-gradient</div>
+{{- end -}}
+{{< /colors.inline >}}
+{{< /markdown >}}
+
+## Sass
+
+In addition to the following Sass functionality, consider reading about our included [CSS custom properties]({{< docsref "/customize/css-variables" >}}) (aka CSS variables) for colors and more.
+
+### Variables
+
+Most `background-color` utilities are generated by our theme colors, reassigned from our generic color palette variables.
+
+{{< scss-docs name="color-variables" file="scss/_variables.scss" >}}
+
+{{< scss-docs name="theme-color-variables" file="scss/_variables.scss" >}}
+
+{{< scss-docs name="variable-gradient" file="scss/_variables.scss" >}}
+
+Grayscale colors are also available, but only a subset are used to generate any utilities.
+
+{{< scss-docs name="gray-color-variables" file="scss/_variables.scss" >}}
+
+### Map
+
+Theme colors are then put into a Sass map so we can loop over them to generate our utilities, component modifiers, and more.
+
+{{< scss-docs name="theme-colors-map" file="scss/_variables.scss" >}}
+
+Grayscale colors are also available as a Sass map. **This map is not used to generate any utilities.**
+
+{{< scss-docs name="gray-colors-map" file="scss/_variables.scss" >}}
+
+### Mixins
+
+**No mixins are used to generate our background utilities**, but we do have some additional mixins for other situations where you'd like to create your own gradients.
+
+{{< scss-docs name="gradient-bg-mixin" file="scss/mixins/_gradients.scss" >}}
+
+{{< scss-docs name="gradient-mixins" file="scss/mixins/_gradients.scss" >}}
+
+### Utilities API
+
+Background utilities are declared in our utilities API in `scss/_utilities.scss`. [Learn how to use the utilities API.]({{< docsref "/utilities/api#using-the-api" >}})
+
+{{< scss-docs name="utils-bg-color" file="scss/_utilities.scss" >}}