GalleriomJS lets you create a beautiful gallery slideshow. It's goal is to be used similar to default WP gallery - via WYSIWYG editor.

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GalleriomJS lets you create a beautiful gallery slideshow. It’s goal is to be used similar to default WP gallery – via WYSIWYG editor. Built in pure JS(ES6), CSS3 and HTML. It is dependency free, so no additional files are loaded or added. 
GalleriomJS won’t override default WP gallery shortcode but instead it acts as a wrapper for images.
BASIC OPTIONS
Gallery is created with shortcode:
<blockquote>
<code>[galleriom][/galleriom]</code>
</blockquote>
1. RESPONSIVE GALLERY
This is default version. 
Example:
<blockquote>
<code>[galleriom width="100%" height="100%"][/galleriom]</code>
</blockquote>
SETTING FIXED WIDTH AND HEIGHT
If you wish to use defined width and height for gallery, you can just include dimensions in shortcode. 
Example:
<blockquote>
<code>[galleriom width="400" height="400"][/galleriom]</code>
</blockquote>
By the default settings width is set to 100% and height is set to 400px.
ENABLING OR DISABLING THUMBNAILS
Thumbs can be toggled. Default value is ENABLED, but you can easily disabled. 
Example thumbs ON:
<blockquote>
<code>[galleriom thumbs="true"][/galleriom]</code>
</blockquote>
Example thumbs OFF:
<blockquote>
<code>[galleriom thumbs="false"][/galleriom]</code>
</blockquote>
IMAGE FIT
Default value is COVER, but you can choose within 5 options: 
* contain 
* cover 
* fill 
* scale-down 
* none
Example:
<blockquote>
[galleriom width=”100%” height=”400″ fit=”contain”][/galleriom]`
</blockquote>

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