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- Move 4.1 docs to 4.2 - Update versions everywhere to 4.1.3 with release script - Manually bump the shorthand version in package.json - Add 4.2 to the versions docs page - Update some redirects - Fix tests asset URLs - Bump Nuget and more
85 lines
3.3 KiB
Markdown
85 lines
3.3 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 larger than their parent elements) 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`. `max-width: 100%;` and `height: auto;` are applied to the image so that it scales with the parent element.
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<div class="bd-example">
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{% include icons/placeholder.svg width="100%" height="250" class="bd-placeholder-img-lg img-fluid" text="Responsive image" %}
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</div>
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{% highlight html %}
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<img src="..." class="img-fluid" alt="Responsive image">
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{% endhighlight %}
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{% capture callout %}
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##### SVG images and IE 10
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In Internet Explorer 10, SVG images with `.img-fluid` are disproportionately sized. To fix this, add `width: 100% \9;` where necessary. This fix improperly sizes other image formats, so Bootstrap doesn't apply it automatically.
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{% endcapture %}
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{% include callout.html content=callout type="warning" %}
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## Image thumbnails
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In addition to our [border-radius utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/borders/), you can use `.img-thumbnail` to give an image a rounded 1px border appearance.
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<div class="bd-example bd-example-images">
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{% include icons/placeholder.svg 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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</div>
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{% highlight html %}
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<img src="..." alt="..." class="img-thumbnail">
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{% endhighlight %}
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## Aligning images
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Align images with the [helper float classes]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/float/) or [text alignment classes]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/text/#text-alignment). `block`-level images can be centered using [the `.mx-auto` margin utility class]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/spacing/#horizontal-centering).
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<div class="bd-example bd-example-images">
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{% include icons/placeholder.svg width="200" height="200" class="rounded float-left" %}
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{% include icons/placeholder.svg width="200" height="200" class="rounded float-right" %}
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</div>
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{% highlight html %}
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<img src="..." class="rounded float-left" alt="...">
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<img src="..." class="rounded float-right" alt="...">
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{% endhighlight %}
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<div class="bd-example bd-example-images">
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{% include icons/placeholder.svg width="200" height="200" class="rounded mx-auto d-block" %}
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</div>
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{% highlight html %}
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<img src="..." class="rounded mx-auto d-block" alt="...">
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{% endhighlight %}
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<div class="bd-example bd-example-images">
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<div class="text-center">
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{% include icons/placeholder.svg width="200" height="200" class="rounded" %}
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</div>
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</div>
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{% highlight html %}
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<div class="text-center">
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<img src="..." class="rounded" alt="...">
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</div>
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{% endhighlight %}
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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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{% highlight 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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{% endhighlight %}
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