Sticky Block for Gutenberg

Sticky Block for Gutenberg is a container block that sticks to the top or bottom of the page once the visitor scrolls past it. Drop any blocks inside — a navigation menu, a call-to-action, a contact button, a sidebar widget — and they will follow the reader down the page.

Unlike CSS position: sticky (which only works within its parent scroll container), Sticky Block for Gutenberg uses position: fixed with intelligent scroll detection, so it works reliably in any layout.

Key Features

• Multiple sticky blocks per page — place as many sticky blocks as you need, each with its own settings.
• Container block — nest any Gutenberg blocks inside: navigation, buttons, headings, images, widgets.
• Top or bottom sticky — choose whether the block locks to the top or bottom of the viewport. Cookie bars, chat widgets, and floating CTAs belong at the bottom.
• Show only after scrolling — hide the block entirely at page load and reveal it only after the visitor scrolls past the trigger point. Pairs naturally with an entry transition for a smooth appear effect.
• Scroll trigger offset – make the block wait until the visitor has scrolled a set number of pixels before it sticks, instead of sticking the moment it reaches the viewport edge.
• Dismissible — add a close button so visitors can dismiss the block, and optionally remember the dismissal for a set number of days. Perfect for cookie bars and floating CTAs.
• Dismiss button styling – control the close button’s icon color, background color, and size so it matches your design.
• Sticky style preview in the editor – a toolbar toggle applies your sticky-state styles to the block in the canvas, so you can design the stuck look without leaving the editor.
• Top offset — set how many pixels of space to leave between the sticky block and the top of the viewport.
• Admin toolbar aware — automatically shifts down for logged-in users who have the WordPress admin bar visible.
• Z-index control — fine-tune stacking order so the sticky block always sits above (or below) other elements.
• Scroll direction mode — choose “Always sticky” or “Only while scrolling up” (the pattern used by modern sticky headers that appear on the way back up).
• Stop before an element — un-stick the block before it overlaps a footer or another landmark, using a CSS selector (e.g. #footer).
• Disable on mobile — turn off sticky behaviour below a configurable viewport breakpoint (default 768 px).
• Disable on desktop — turn off sticky behaviour above a configurable viewport breakpoint. Useful for elements that should only float on smaller screens.
• Sticky-state background color — set a background color that only appears while the block is stuck, e.g. a solid white behind a transparent nav.
• Sticky-state text color — change the text color when sticky, so a transparent header with light text can switch to dark text on a white background.
• Sticky-state shadow — add a drop shadow (Small / Medium / Large) that appears only when the block is in sticky position.
• Sticky-state padding (all sides) — control top, bottom, left, and right padding independently, applied only while the block is stuck.
• Sticky-state border — add a Solid or Dashed border with custom width and color that appears only in the sticky state.
• Sticky-state border radius – round the block’s corners only while it is stuck.
• Sticky-state opacity – make the block semi-transparent while it is stuck, for a subtle see-through floating bar.
• Full width when sticky — instantly expand the block to span the full viewport width the moment it becomes sticky, ideal for navigation bars.
• Entry & exit transition — animate the block smoothly in and out of the sticky state with Fade, Slide down, or Fade + Slide, with a configurable duration.
• Custom class when sticky — add your own CSS classes to the block when it becomes sticky, for advanced theme integration.
• State classes for developers – the block always carries an is-sticky or is-not-sticky class, so your theme CSS can target both states without any JavaScript.
• Block transforms — convert any Group block into a Sticky Block (and back) directly in the editor, without rebuilding.
• Accessibility — set an aria-label on the sticky wrapper to give screen reader users useful context.
• Zero dependencies — no jQuery. The frontend script is plain JavaScript, under 4 KB minified.

How to use

1. In the block editor, search for Sticky Block and insert it anywhere on your page.
2. Add blocks inside it — a Navigation block, a Button, a Group, anything you like.
3. Open the block settings panel on the right and adjust offset, z-index, scroll behaviour, and sticky-state styles.
4. Preview your page and scroll — the block will stick to the top (or bottom) of the viewport.