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diff --git a/site/content/docs/5.2/layout/containers.md b/site/content/docs/5.2/layout/containers.md new file mode 100644 index 0000000..6801aca --- /dev/null +++ b/site/content/docs/5.2/layout/containers.md @@ -0,0 +1,91 @@ +--- +layout: docs +title: Containers +description: Containers are a fundamental building block of Bootstrap that contain, pad, and align your content within a given device or viewport. +group: layout +toc: true +--- + +## How they work + +Containers are the most basic layout element in Bootstrap and are **required when using our default grid system**. Containers are used to contain, pad, and (sometimes) center the content within them. While containers *can* be nested, most layouts do not require a nested container. + +Bootstrap comes with three different containers: + +- `.container`, which sets a `max-width` at each responsive breakpoint +- `.container-{breakpoint}`, which is `width: 100%` until the specified breakpoint +- `.container-fluid`, which is `width: 100%` at all breakpoints + +The table below illustrates how each container's `max-width` compares to the original `.container` and `.container-fluid` across each breakpoint. + +See them in action and compare them in our [Grid example]({{< docsref "/examples/grid#containers" >}}). + +{{< bs-table "table" >}} +| | Extra small<div class="fw-normal"><576px</div> | Small<div class="fw-normal">≥576px</div> | Medium<div class="fw-normal">≥768px</div> | Large<div class="fw-normal">≥992px</div> | X-Large<div class="fw-normal">≥1200px</div> | XX-Large<div class="fw-normal">≥1400px</div> | +| --- | --- | --- | --- | --- | --- | --- | +| `.container` | <span class="text-muted">100%</span> | 540px | 720px | 960px | 1140px | 1320px | +| `.container-sm` | <span class="text-muted">100%</span> | 540px | 720px | 960px | 1140px | 1320px | +| `.container-md` | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | 720px | 960px | 1140px | 1320px | +| `.container-lg` | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | 960px | 1140px | 1320px | +| `.container-xl` | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | 1140px | 1320px | +| `.container-xxl` | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | 1320px | +| `.container-fluid` | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | <span class="text-muted">100%</span> | +{{< /bs-table >}} + +## Default container + +Our default `.container` class is a responsive, fixed-width container, meaning its `max-width` changes at each breakpoint. + +```html +<div class="container"> + <!-- Content here --> +</div> +``` + +## Responsive containers + +Responsive containers allow you to specify a class that is 100% wide until the specified breakpoint is reached, after which we apply `max-width`s for each of the higher breakpoints. For example, `.container-sm` is 100% wide to start until the `sm` breakpoint is reached, where it will scale up with `md`, `lg`, `xl`, and `xxl`. + +```html +<div class="container-sm">100% wide until small breakpoint</div> +<div class="container-md">100% wide until medium breakpoint</div> +<div class="container-lg">100% wide until large breakpoint</div> +<div class="container-xl">100% wide until extra large breakpoint</div> +<div class="container-xxl">100% wide until extra extra large breakpoint</div> +``` + +## Fluid containers + +Use `.container-fluid` for a full width container, spanning the entire width of the viewport. + +```html +<div class="container-fluid"> + ... +</div> +``` + +## Sass + +As shown above, Bootstrap generates a series of predefined container classes to help you build the layouts you desire. You may customize these predefined container classes by modifying the Sass map (found in `_variables.scss`) that powers them: + +{{< scss-docs name="container-max-widths" file="scss/_variables.scss" >}} + +In addition to customizing the Sass, you can also create your own containers with our Sass mixin. + +```scss +// Source mixin +@mixin make-container($padding-x: $container-padding-x) { + width: 100%; + padding-right: $padding-x; + padding-left: $padding-x; + margin-right: auto; + margin-left: auto; +} + +// Usage +.custom-container { + @include make-container(); +} +``` + +For more information and examples on how to modify our Sass maps and variables, please refer to [the Sass section of the Grid documentation]({{< docsref "/layout/grid#sass" >}}). |