bulma/docs/documentation/elements/image.html
2024-09-18 14:46:10 +01:00

298 lines
8.2 KiB
HTML

---
title: Image
layout: docs
theme: library
doc-tab: elements
doc-subtab: image
dimensions:
- 16
- 24
- 32
- 48
- 64
- 96
- 128
breadcrumb:
- home
- documentation
- elements
- elements-image
meta:
colors: false
sizes: false
variables: true
hide_css_vars: true
---
{% capture image %}
<figure class="image is-128x128">
<img src="{{site.url}}/assets/images/placeholders/128x128.png" />
</figure>
{% endcapture %}
{% capture rounded_image %}
<figure class="image is-128x128">
<img class="is-rounded" src="{{site.url}}/assets/images/placeholders/128x128.png" />
</figure>
{% endcapture %}
{% capture retina_image %}
<figure class="image is-128x128">
<img src="{{site.url}}/assets/images/placeholders/256x256.png" />
</figure>
{% endcapture %}
{% capture iframe_ratio %}
<figure class="image is-16by9">
<iframe
class="has-ratio"
width="640"
height="360"
src="https://www.youtube.com/embed/YE7VzlLtp-4"
frameborder="0"
allowfullscreen
></iframe>
</figure>
{% endcapture %}
<div class="content">
<p>
Because images can take a few seconds to load (or not at all), use the
<code>image</code> container to specify a <strong>precisely sized</strong> container so that your layout isn't
broken because of image loading or image errors.
</p>
</div>
{% include docs/elements/snippet.html content=image %}
{% include docs/elements/anchor.html name="Fixed square images" %}
<div class="content">
<p>There are <strong>7</strong> dimensions to choose from, useful for <strong>avatars</strong>:</p>
</div>
<table class="table is-bordered">
<tbody>
{% for dimension in page.dimensions %}
<tr>
<td>
<code>image is-{{ dimension }}x{{ dimension }}</code>
</td>
<td>
<figure class="image is-{{ dimension }}x{{ dimension }}">
<img
src="{{site.url}}/assets/images/placeholders/{{ dimension }}x{{ dimension }}.png"
>
</figure>
</td>
<td>{{ dimension }}x{{ dimension }}px</td>
</tr>
{% endfor %}
</tbody>
</table>
{% include docs/elements/anchor.html name="Rounded images" %}
<div class="content">
<p>You can also make rounded images, using <code>is-rounded</code> class:</p>
</div>
{% include docs/elements/snippet.html content=rounded_image %}
{% include docs/elements/anchor.html name="Retina images" %}
<div class="content">
<p>
Because the image is fixed in size, you can use an image that is
<strong>four times as big</strong>. So for example, in a <code>128x128</code> container, you can use a
<code>256x256</code> image, but resized to <strong>128x128</strong> pixels.
</p>
</div>
{% include docs/elements/snippet.html content=retina_image %}
{% include docs/elements/anchor.html name="Responsive images with ratios" %}
<div class="content">
<p>
If you don't know the exact dimensions but know the
<strong>ratio</strong> instead, you can use one of the <strong>16 ratio modifiers</strong>, which include
<a
href="https://en.wikipedia.org/wiki/Aspect_ratio_%28image%29#Still_photography"
>common aspect ratios in still photography</a
>:
</p>
</div>
<table id="images" class="table is-bordered">
<tbody>
<tr>
<td><code>image is-square</code></td>
<td style="width: 10rem">
<figure class="image is-square">
<img src="{{site.url}}/assets/images/placeholders/480x480.png">
</figure>
</td>
<td>Square (or 1 by 1)</td>
</tr>
<tr>
<td><code>image is-1by1</code></td>
<td style="width: 10rem">
<figure class="image is-1by1">
<img src="{{site.url}}/assets/images/placeholders/480x480.png">
</figure>
</td>
<td>1 by 1</td>
</tr>
<tr>
<td><code>image is-5by4</code></td>
<td style="width: 10rem">
<figure class="image is-5by4">
<img src="{{site.url}}/assets/images/placeholders/600x480.png">
</figure>
</td>
<td>5 by 4</td>
</tr>
<tr>
<td><code>image is-4by3</code></td>
<td style="width: 10rem">
<figure class="image is-4by3">
<img src="{{site.url}}/assets/images/placeholders/640x480.png">
</figure>
</td>
<td>4 by 3</td>
</tr>
<tr>
<td><code>image is-3by2</code></td>
<td style="width: 10rem">
<figure class="image is-3by2">
<img src="{{site.url}}/assets/images/placeholders/480x320.png">
</figure>
</td>
<td>3 by 2</td>
</tr>
<tr>
<td><code>image is-5by3</code></td>
<td style="width: 10rem">
<figure class="image is-5by3">
<img src="{{site.url}}/assets/images/placeholders/800x480.png">
</figure>
</td>
<td>5 by 3</td>
</tr>
<tr>
<td><code>image is-16by9</code></td>
<td style="width: 10rem">
<figure class="image is-16by9">
<img src="{{site.url}}/assets/images/placeholders/640x360.png">
</figure>
</td>
<td>16 by 9</td>
</tr>
<tr>
<td><code>image is-2by1</code></td>
<td style="width: 10rem">
<figure class="image is-2by1">
<img src="{{site.url}}/assets/images/placeholders/640x320.png">
</figure>
</td>
<td>2 by 1</td>
</tr>
<tr>
<td><code>image is-3by1</code></td>
<td style="width: 10rem">
<figure class="image is-3by1">
<img src="{{site.url}}/assets/images/placeholders/720x240.png">
</figure>
</td>
<td>3 by 1</td>
</tr>
<tr>
<td><code>image is-4by5</code></td>
<td style="width: 10rem">
<figure class="image is-4by5">
<img src="{{site.url}}/assets/images/placeholders/480x600.png">
</figure>
</td>
<td>4 by 5</td>
</tr>
<tr>
<td><code>image is-3by4</code></td>
<td style="width: 10rem">
<figure class="image is-3by4">
<img src="{{site.url}}/assets/images/placeholders/480x640.png">
</figure>
</td>
<td>3 by 4</td>
</tr>
<tr>
<td><code>image is-2by3</code></td>
<td style="width: 10rem">
<figure class="image is-2by3">
<img src="{{site.url}}/assets/images/placeholders/320x480.png">
</figure>
</td>
<td>2 by 3</td>
</tr>
<tr>
<td><code>image is-3by5</code></td>
<td style="width: 10rem">
<figure class="image is-3by5">
<img src="{{site.url}}/assets/images/placeholders/480x800.png">
</figure>
</td>
<td>3 by 5</td>
</tr>
<tr>
<td><code>image is-9by16</code></td>
<td style="width: 10rem">
<figure class="image is-9by16">
<img src="{{site.url}}/assets/images/placeholders/360x640.png">
</figure>
</td>
<td>9 by 16</td>
</tr>
<tr>
<td><code>image is-1by2</code></td>
<td style="width: 10rem">
<figure class="image is-1by2">
<img src="{{site.url}}/assets/images/placeholders/320x640.png">
</figure>
</td>
<td>1 by 2</td>
</tr>
<tr>
<td><code>image is-1by3</code></td>
<td style="width: 10rem">
<figure class="image is-1by3">
<img src="{{site.url}}/assets/images/placeholders/240x720.png">
</figure>
</td>
<td>1 by 3</td>
</tr>
</tbody>
</table>
<div class="content">
<p>
The only <strong>requirement</strong> is for the parent element to already have a specific <strong>width</strong>.
</p>
</div>
<div class="content">
<p>
The <code>image</code> container will usually take up the <strong>whole width</strong> while maintaining the perfect
ratio. <br>
If it doesn't, you can force it by appending the <code>is-fullwidth</code> modifier.
</p>
</div>
{% include docs/elements/anchor.html name="Arbitrary ratios with any element" %}
<div class="content">
<p>
You can apply a specific <strong>ratio</strong> on <strong>any element</strong> other than an <code>img</code>,
simply by applying the <code>has-ratio</code> modifier to a resizable element.
</p>
<p>
For example, you can apply a <code>16by9</code> ratio on an <code>iframe</code>. Resize the browser, and you'll see
how the ratio is maintained.
</p>
</div>
{% include docs/elements/snippet.html content=iframe_ratio horizontal=true %}