amp-fit-text
Description
Expands or shrinks font size to fit the content within the space given.
Required Scripts
<script async custom-element="amp-fit-text" src="https://cdn.ampproject.org/v0/amp-fit-text-1.0.js"></script>
<script async custom-element="amp-fit-text" src="https://cdn.ampproject.org/v0/amp-fit-text-1.0.js"></script> <link rel="stylesheet" href="https://cdn.ampproject.org/v0/amp-fit-text-1.0.css">
Supported Layouts
Usage
Expands or shrinks its font size to fit the content within the space given to it.
The amp-fit-text
component allows you to manage the size and fit of text within a specified area. For content contained in an amp-fit-text
element, the amp-fit-text
component finds the best font size to fit all of the content within the available space. The expected content for amp-fit-text
is text or other inline content, but it can also contain non-inline content.
In the following example, the <amp-fit-text>
element is nested within a 300x300 blue div
block. For the <amp-fit-text>
element, we specified a responsive
layout. As a result, the text scales responsively per the aspect ratio provided by the width and height (200x200) of the <amp-fit-text>
element, but the text does not exceed the size of its parent.
<div style="width: 300px; height: 300px; background:#005AF0; color: #FFF;"> <amp-fit-text width="200" height="200" layout="responsive"> Lorem ipsum dolor sit amet, has nisl nihil convenire et, vim at aeque inermis reprehendunt. </amp-fit-text> </div>
The following example is similar to the one above, but in this example we specify a max-font-size
of 22
, so the text is smaller but still fits the space:
<div style="width: 300px; height: 300px; background:#005AF0; color: #FFF;"> <amp-fit-text width="200" height="200" layout="responsive" max-font-size="22"> Lorem ipsum dolor sit amet, has nisl nihil convenire et, vim at aeque inermis reprehendunt. </amp-fit-text> </div>
Migrating from 0.1
Unlike 0.1
, the experimental 1.0
version of amp-fit-text
does not account for margin and border size as contributing to the total fit-text coverage area.
Standalone use outside valid AMP documents
Bento allows you to use AMP components in non-AMP pages without needing to commit to fully valid AMP. You can take these components and place them in implementations with frameworks and CMSs that don't support AMP. Read more in our guide Use AMP components in non-AMP pages.
To find the standalone version of amp-fit-text
, see bento-fit-text
.
Overflowing content
If the content of the amp-fit-text
overflows the available space, even with a
min-font-size
specified, the overflowing content is cut off and hidden. WebKit and Blink-based browsers show ellipsis for overflowing content.
In the following example, we specified a min-font-size
of 40
, and added more content inside the amp-fit-text
element. This causes the content to exceed the size of its fixed block parent, so the text is truncated to fit the container.
<div style="width: 300px; height: 300px; background:#005AF0; color: #FFF;"> <amp-fit-text width="200" height="200" layout="responsive" min-font-size="40"> Lorem ipsum dolor sit amet, has nisl nihil convenire et, vim at aeque inermis reprehendunt. Lorem ipsum dolor sit amet, has nisl nihil convenire et, vim at aeque inermis reprehendunt </amp-fit-text> </div>
Accessibility considerations of overflowing content
While overflowing content is visually truncated to fit the container, note that it's still present in the document. Do not rely on the overflow behaviour to simply "stuff" large amounts of content in your pages - while visually it may look appropriate, it may lead to the page becoming overly verbose to users of assistive technologies (such as screen readers), as for these users all the truncated content will still be read/announced in full.
Attributes
Media Queries
The attributes for <amp-fit-text>
can be configured to use different
options based on a media query.
min-font-size
Specifies the minimum font size in pixels as an integer that the amp-fit-text
can use.
max-font-size
Specifies the maximum font size in pixels as an integer that the amp-fit-text
can use.
Common attributes
This element includes common attributes extended to AMP components.
Styling
You can style the amp-fit-text
with standard CSS. In particular, you can use text-align
, font-weight
, color
and many other CSS properties, with the main exception of font-size
.
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