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64 lines
2.2 KiB
Markdown
64 lines
2.2 KiB
Markdown
---
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layout: docs
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title: Images
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description: Documentation and examples for opting images into responsive behavior (so they never become wider than their parent) and add lightweight styles to them—all via classes.
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group: content
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toc: true
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---
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## Responsive images
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Images in Bootstrap are made responsive with `.img-fluid`. This applies `max-width: 100%;` and `height: auto;` to the image so that it scales with the parent width.
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{{< example >}}
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{{< placeholder width="100%" height="250" class="bd-placeholder-img-lg img-fluid" text="Responsive image" >}}
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{{< /example >}}
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## Image thumbnails
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In addition to our [border-radius utilities]({{< docsref "/utilities/borders" >}}), you can use `.img-thumbnail` to give an image a rounded 1px border appearance.
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{{< example >}}
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{{< placeholder width="200" height="200" class="img-thumbnail" title="A generic square placeholder image with a white border around it, making it resemble a photograph taken with an old instant camera" >}}
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{{< /example >}}
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## Aligning images
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Align images with the [helper float classes]({{< docsref "/utilities/float" >}}) or [text alignment classes]({{< docsref "/utilities/text#text-alignment" >}}). `block`-level images can be centered using [the `.mx-auto` margin utility class]({{< docsref "/utilities/spacing#horizontal-centering" >}}).
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{{< example >}}
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{{< placeholder width="200" height="200" class="rounded float-start" >}}
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{{< placeholder width="200" height="200" class="rounded float-end" >}}
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{{< /example >}}
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{{< example >}}
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{{< placeholder width="200" height="200" class="rounded mx-auto d-block" >}}
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{{< /example >}}
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{{< example >}}
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<div class="text-center">
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{{< placeholder width="200" height="200" class="rounded" >}}
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</div>
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{{< /example >}}
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## Picture
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If you are using the `<picture>` element to specify multiple `<source>` elements for a specific `<img>`, make sure to add the `.img-*` classes to the `<img>` and not to the `<picture>` tag.
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```html
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<picture>
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<source srcset="..." type="image/svg+xml">
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<img src="..." class="img-fluid img-thumbnail" alt="...">
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</picture>
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```
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## Sass
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### Variables
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Variables are available for image thumbnails.
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{{< scss-docs name="thumbnail-variables" file="scss/_variables.scss" >}}
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