mrdigital

Use this plugin to display an image popup for promotions, alerts, or messages. Key features include: 
– Simple activation/deactivation of the popup. 
– Choose an image from your media gallery. 
– Set a unique Popup ID to control repeat appearances. 
– Optionally link the popup image to any URL. 
– Control how frequently the popup reappears using an expiry time. 
– Delay popup display by a set number of seconds. 
– NEW: Conditionally display the popup only on selected posts or pages. 
– NEW: Enhanced accessibility: 
 – Close popup with the “Escape” key. 
 – Focus management for keyboard navigation. 
 – Aria attributes and roles for screen readers. 
– NEW: Improved admin UI so that the conditional display options only appear if enabled.

Simple Image Popup

Prosta i szybka bez zbędnych funkcji. Polecam :)

Polecam

A simple way to show a popup image on your website with various enhancements including conditional display and accessibility features.

Scott (@scottsweb)

mobble provides mobile related conditional functions for your site. e.g. <a href="https://wordpress.org/extend/plugins/mobble/faq/" title="More examples" rel="ugc">is_iphone(), is_mobile() and is_tablet()</a>.
CSS media queries are great for creating responsive web designs but they do not always provide enough control. There are times when not all of the content, JavaScript or CSS on a page is relevant for a particular device. With the mobble functions you can make these kind of tweaks to your theme.
mobble can also add device information to the body class of your theme allowing you to easily target your CSS for different gadgets.
<a href="http://scott.ee/" title="Freelance WordPress web design Farnham, Surrey" rel="nofollow ugc">a plugin by Scott Evans</a>

mobble

Plugin is very simple and works very well. Great example of the plugin that does one job and does it well. Very appreciated!

Great plugin

Helper plugin that provides conditional functions for detecting a variety of mobile devices & tablets. Perfect accompaniment to CSS Media Queries.

Simple Image Popup vs mobble