Just like the NYTimes button, upPrev allows WordPress site admins to provide the same functionality for their readers. When a reader scrolls to the bottom of a single post, a button animates in the page’s bottom right corner, allowing the reader to select the next available post in the single post’s category (the category is also clickable to access an archive page). If no next post exists, no button is displayed.

• Settings
• FAQs

• Appearance
  Animation Style:	/> Flyout /> Fade In/Out
  Offset:	" maxlength="3" size="3" />% Percentage of the page required to be scrolled to display a box. /> Before HTML element. Element selector: " /> If not selected, all page length is taken for calculation. If selected, make sure to use the ID or class of an existing element. Put # "hash" before the ID, or . "dot" before a class name.
  Position:	/> Right /> Left
  Content	/> Excerpt. Word limit: " /> /> Thumbnail

• Where can I customize fonts, colors, etc.?

  You can modify all css properties by edditing ">upprev.css

  How to add some space after upPrev?

  You can edit ">upprev.css and change bottom:0px; to different value, e.g. bottom:30px;

  How to add upPrev for pages?

  You can display a custom text by adding a shortcode to your page: [upprev]Sample HTML Text[/upprev]. When added to post it will replace a default content.