Sticky Element Tester
Preview
Scroll to test sticky positioning
The sticky element will stay in view when you scroll, depending on the settings you've chosen.
Content Section 1
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla facilisi. Maecenas ac justo eu nunc tincidunt varius.
Content Section 2
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla facilisi. Maecenas ac justo eu nunc tincidunt varius.
Content Section 3
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla facilisi. Maecenas ac justo eu nunc tincidunt varius.
Content Section 4
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla facilisi. Maecenas ac justo eu nunc tincidunt varius.
.container {
height: 400px;
overflow-y: auto;
position: relative;
border: 1px solid #e2e8f0;
border-radius: 0.5rem;
}
.content {
height: 1500px;
background: linear-gradient(to bottom, #f9fafb, #f3f4f6);
padding: 1rem;
position: relative;
}
.sticky-element {
width: 100%;
height: 80px;
background-color: #3b82f6;
color: white;
display: flex;
align-items: center;
justify-content: center;
font-weight: bold;
position: sticky;
top: 0px;
z-index: 10;
}
/* Optional sentinel for intersection observer */
.sticky-sentinel {
position: absolute;
top: 0px;
height: 1px;
width: 100%;
background-color: transparent;
}
/* Optional fixed class for JS implementation */
.is-stuck {
position: fixed;
top: 0px;
width: calc(100% - 2rem);
}Sticky Settings
Element Properties
Advanced Options
Sticky Position vs Fixed Position
position: sticky keeps an element in the normal document flow, while position: fixed removes it from the flow. The Intersection Observer API can detect when an element becomes sticky.
Related Tools
Sticky Element Tester: Your Complete Solution
Test and experiment with CSS sticky positioning on elements to understand how they behave during scrolling. Perfect for developers aiming to create sticky headers, sidebars, or navigation menus.
Why is it Useful?
Sticky positioning can be tricky to get right. This tool:
- Allows developers to visualize sticky behavior in real-time
- Helps debug and understand sticky positioning quirks
- Speeds up UI development with instant feedback
- Supports experimentation with offsets and container boundaries
- Improves layout decisions for sticky headers, navbars, and more
Key Features
- Interactive sticky element simulation
- Adjust sticky offsets (top, bottom)
- Configurable container height and scroll area
- Visual indication of sticky state changes
- Responsive design for desktop and mobile testing
How to Use?
- Open the tool and observe the default sticky element behavior
- Adjust the sticky position offset values to test different scenarios
- Scroll within the container to see the sticky effect in action
- Modify container size to simulate various page layouts
- Use the visual feedback to understand when elements stick and release
Use Cases
Typical use cases include:
- Developers: Test sticky headers or navbars before deployment
- Designers: Prototype sticky sidebar behavior
- QA testers: Verify sticky functionality across devices
- Educators: Demonstrate sticky positioning concepts
- Web projects: Implement smooth and user-friendly sticky elements
Benefits
- Improves understanding of CSS sticky positioning
- Saves time debugging sticky layout issues
- Facilitates responsive and adaptive UI development
- Visual and interactive testing environment
- Helps create better user experiences with sticky UI elements
Frequently Asked Questions
What does CSS sticky positioning do?
It allows elements to stick to a position as you scroll past them.
Can I set different offsets for sticky elements?
Yes, you can configure top and bottom offset values in the tool.
Is this tool mobile-friendly?
Yes, it works well on mobile and desktop browsers.
Does this tool provide actual CSS code?
This tool focuses on visualization; code snippets can be added in future versions.
Is the Sticky Element Tester free?
Yes, it is free and available online.