Strawberry Jellyfish

Easily create full screen image backgrounds and fading slideshows that stretch 
and adapt to the size of your page.
You can either use it as a global “cover” style background that will be 
displayed on all pages and posts of your WordPress website or you can give 
individual posts or pages including custom post types their own specific 
background – great for giving parts of a website a whole different look.
Jellyfish Backdrop makes fullscreen background slideshows easy by allowing 
you to assign multiple backgrounds to any page or post.
<ul>
<li>Unlimited number of post and slideshows.</li>
<li>Create different slideshows or backgrounds or different areas of your site.</li>
<li>Easy to use admin panels with sortable images and media library integration.</li>
<li>Display images in any page element allowing slideshows anywhere, not just as 
a background!</li>
</ul>
<h4>Demo</h4>
See the plugin homepage for demos and full details: 
http://strawberryjellyfish.com/wordpress-plugins/jellyfish-backdrop/
<h3>Usage</h3>
Visit the settings page to set up the global and default options. Here you’ll 
be able to set up a default background image that will be displayed on every 
page of your blog, enable or disable the global background or individual post 
and page background support as well as set up the default options.
To add a unique background image or slideshow to a specific post or page, 
first make sure that in the Enable Page and Post Type Slideshows section 
on the setting page, you check any post types you want to allow slideshows 
to appear on. You’ll now find a new area on the post / page edit screens 
where you can add images to the Backdrop Slideshow and alter fade time, 
slide display time and where the images will appear. Jellyfish Backdrop uses 
the WordPress image uploader and Media Library, so it’s easy to choose the 
images you want to use. You can also reorder the images by dragging. 
Once you’ve finished adding and arranging your images, be sure to save the 
post or your changes will not be saved.
Page / Post backgrounds will override the default background so it’s possible 
to define one background to be used site wide and another on a specific page.
By default images are shown as the main page background (body), however you 
can make the images appear as backgrounds to other areas of the page by 
supplying any valid element id or class name in the Container field on the 
admin page. eg. #main, .header

Jellyfish backdrop

Fullscreen background images and background slideshows on any WordPress post or page. Easily upload and select images using the media library.

Chris Stephens

Simple Fullscreen Responsive Slider (or Simple Slider) is exactly that—an 
easy-to-use, lightweight, responsive slider plugin designed to add a fullscreen 
slide show to your front page. It supports multiple post thumbnails for slide 
backgrounds, has no branding, and you can edit all the CSS directly from the 
options page (or add it into your stylesheet and leave the custom CSS blank).
DEVELOPER-FRIENDLY
Or perhaps this section should read “client-friendly” as the plugin has no 
branding on the slide editor or options page. Our goal was to create a useful 
slider that other developers would feel comfortable with and enjoy using on 
client projects. Note: The plugin is intended for developers and changing its 
appearance requires customizing the default CSS.
CUSTOMIZABLE
The plugin provides either a fading or sliding transition (with customizable 
slide and effect durations), slide overlays, and allows developers to edit all 
CSS directly from the options screen. Alternatively, you can leave the custom 
CSS blank and add the required styles into your main stylesheet.
RESPONSIVE DESIGN
When combined with Chris Scott/VOCE Platform’s awesome Multiple Post Thumbnails 
plugin (see <a href="https://wordpress.org/plugins/multiple-post-thumbnails/" rel="ugc"> 
Multiple Post Thumbnails</a>), users can attach up to six separate images for a 
true responsive slider. The plugin will prompt for six different backgrounds and 
use those images according to the device used (instead of sending large images 
to mobile devices and/or low resolution images to retina and 4K displays). If 
you leave a slot open, it will search subsequently smaller sized images so, at 
a minimum, you must attach an image to the smallest slot.
The slider uses Patrick Kunka’s EasyFader jQuery plugin (visit 
https://github.com/patrickkunka/easyfader for more information).

Simple Fullscreen Responsive Slider

Simple Fullscreen Responsive Slider is an easy-to-use, lightweight, responsive, fullscreen slider that supports MultiPostThumbnails and custom CSS.

Jellyfish backdrop vs Simple Fullscreen Responsive Slider