The required markup for Readmore.js is extremely lightweight. No need for complicated sets of `divs` or hardcoded class names, just call `.readmore()` on the element containing your block of text and Readmore.js takes care of the rest.

Readmore.js is compatible with all versions of jQuery greater than 1.7.0.

## Example

    $('article').readmore();

Yes, it’s that simple. You can change the speed of the animation, the height of the collapsed block, and the open and close elements.

    $('article').readmore({
      speed: 75,
      maxHeight: 500
    });

## The options:

- `speed: 100` (in milliseconds)
- `maxHeight: 200` (in pixels)
- `heightMargin: 16` (in pixels, avoids collapsing blocks that are only slightly larger than `maxHeight`)
- `moreLink: '<a href="#">Read more</a>'`
- `lessLink: '<a href="#">Close</a>'`
- `embedCSS: true` (insert required CSS dynamically, set this to `false` if you include the necessary CSS in a stylesheet)
- `sectionCSS: 'display: block; width: 100%;'` (sets the styling of the blocks)
- `startOpen: false` (do not immediately truncate, start in the fully opened position)
- `expandedClass: 'readmore-js-expanded'` (class added to expanded blocks)
- `collapsedClass: 'readmore-js-collapsed'` (class added to collapsed blocks)
- `beforeToggle: function() {}` (called after a more or less link is clicked, but before the block is collapsed or expanded)
- `afterToggle: function() {}` (called after the block is collapsed or expanded)

If the element has a `max-height` CSS property, Readmore.js will use that value rather than the value of the `maxHeight` option.

### The callbacks:

The callback functions, `beforeToggle()` and `afterToggle`, both receive the same arguments: `trigger`, `element`, and `expanded`.

- `trigger`: the "Read more" or "Close" element that was clicked
- `element`: the block that is being collapsed or expanded
- `expanded`: Boolean; `true` means the block is expanded

#### Callback example:

Here's an example of how you could use the `afterToggle` callback to scroll back to the top of a block when the "Close" link is clicked.

    $('article').readmore({
      afterToggle: function(trigger, element, expanded) {
        if(! expanded) { // The "Close" link was clicked
          $('html, body').animate( { scrollTop: element.offset().top }, {duration: 100 } );
        }
      }
    });

### Recommended CSS:

The intention behind Readmore.js is to use CSS for as much functionality as possible. In particular, “collapsing” is achieved by setting `overflow: hidden` on the containing block and changing the `height` property.

By default, Readmore.js inserts the following CSS:

    .readmore-js-toggle, .readmore-js-section {
      display: block;
      width: 100%;
    }
    .readmore-js-section {
      overflow: hidden;
    }

You can override the the first set of rules when you set up Readmore.js like so:

    $('article').readmore({sectionCSS: 'display: inline-block; width: 50%;'});

If you want to include the necessary styling in your site’s stylesheet, you can disable the dynamic embedding by passing `embedCSS: false` in the options hash.

    $('article').readmore({embedCSS: false});

## Removing Readmore

You can remove the Readmore functionality like so:

    $('article').readmore('destroy');

Or, you can be more surgical by specifying a particular element:

    $('article:first').readmore('destroy');

# Demo

## Artisanal Narwahls

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## Portland Leggings

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Yr messenger bag fanny pack small batch, single-origin coffee literally gluten-free farm-to-table 8-bit godard butcher fap actually biodiesel trust fund. Pickled squid cred pug pop-up. Polaroid deep v 90's, +1 godard mumblecore retro next level carles salvia try-hard food truck gluten-free. Four loko post-ironic tofu lomo, narwhal readymade mustache jean shorts letterpress. Leggings put a bird on it farm-to-table jean shorts williamsburg cardigan. Gentrify pug bushwick PBR fixie etsy. PBR banh mi cardigan, cosby sweater master cleanse mixtape fingerstache.

## This section is shorter than the Readmore minimum

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