cmborchert

This plugin for WordPress adds a background-size controller to the Background Image section in the WordPress Customizer.
You can access the new controller by going to Appearance > Customize from the Dashboard, and clicking on the Background Image section.
Once you’ve added your custom background image, you can set your background-image size to: 
 – “Cover”: As large as possible; fills entire view, with cropping. 
 – “Contain”: As large as possible, without cropping; fits inside of view. 
 – “100% width”: Width fits view perfectly, height may be smaller or larger than view (equivalent to css ‘100% auto’). 
 – “100% height”: Height fits view perfectly, width may be smaller or larger than view (equivalent to css ‘auto 100%’). 
 – “Inherit”: Sets background size to whatever parent element is set to (html, in this case). 
 – “Custom”: Allows you to put in your own css to be applied in the section called “CSS for background-size (if ‘custom’ selected).”
To learn more about the CSS background-size property, go to:
https://developer.mozilla.org/en-US/docs/Web/CSS/background-size 
or 
http://www.w3schools.com/cssref/css3_pr_background-size.asp
<h3>Notes</h3>
Notes: 
*The plugin works by adding styles to the body.custom-background class. If the default custom-background support has been disrupted, then this plugin will not work.

Add Background-Size to Customizer

Allows you to control the background-size of your main background image from the comfort of the customizer, using predetermined values or custom CSS.

Zia Imtiaz

Easy-to-use solution to have a custom scrollbars compatible with desktop,laptop, tablet and phone devices.
Simple installation and activation, it works with NO modification of your code. 
Very stylish scrollbars, with no occupation on your window (original browser scrollbars need some of page space and reduces window/div usable width)
Facilities:
<ul>
<li>Easy to installation</li>
<li>Unlimited colors themes</li>
<li>Height & Width Customizable</li>
<li>Speed & AutoHide mode Customizable</li>
<li>Responsive for all devices</li>
<li>Custom control plugin</li>
<li>Supported of all mejor browsers</li>
<li>For all WordPress versions</li>
<li>And many more…</li>
</ul>
Plugin Features:
 <a href='http://web-settler.com/scrollbar-designer/' rel="nofollow ugc">Premium version</a> 
* Supports full features.
<ul>
<li>On/Off switch.</li>
<li>Auto Hide Scrollbar</li>
<li>Scrollbar Cursor Color.</li>
<li>Scrollbar Cursor Width.</li>
<li>Scrollbar Cursor Boarder Width.</li>
<li>Scrollbar Cursor Boarder Style.</li>
<li>Scrollbar Cursor Boarder Color.</li>
<li>Scrollbar Cursor Boarder Radius.</li>
<li>Rail Color With Opacity.</li>
<li>Scrollbar Rail Position.</li>
<li>Scrollbar Opacity When Active.</li>
<li>Mouse Scroll Step..</li>
<li>Smoth Scroll.</li>
<li>Mouse Whele Scroll.</li>
</ul>
Fully integrated with jQuery 
Compatibile with jQuery UI, jQuery Touch, jQuery Mobile

Scrollbar Designer

Get rid of boring scrollbar and make your own Custom Scrollbar for your website.

Add Background-Size to Customizer vs Scrollbar Designer