How can I prevent the highlighted areas in my Webflow image map from being darkened along with the rest of the image?
TL;DR
- Structure highlight divs with higher z-index and absolute positioning above the dim overlay.
- Simulate image maps using styled divs instead of <map>/<area>, and apply dim effects only to the background or a separate overlay layer.
When using an image map in Webflow and applying a dark overlay or dimming effect on hover or interaction, you might notice that your highlighted areas also get darkened. This typically happens when a single overlay or filter is affecting the entire image including the mapped areas.
1. Separate the Overlay from the Highlighted Areas
- Structure your elements properly: Make sure the dark overlay is in a separate div stacked underneath the highlighted areas using z-index.
- Position the highlights on top: Set the position of your interactive highlight elements (like div blocks or clickable areas) to absolute with a higher z-index than the dark overlay.
2. Use Custom Divs Instead of <map> and <area>
- Webflow does not support native HTML image maps for custom styling. Instead, simulate an image map by:
- Placing an image as a background or inside a relatively positioned container.
- Overlaying absolutely positioned div blocks for each interactive area.
- Applying hover effects only to the background image or a dim layer, not to the interactive divs.
3. Apply the Dimming Effect Only to the Image
- If using interactions or CSS filters for dimming:
- Add a dimmed overlay layer on top of the image (with partial opacity).
- Exclude the highlight areas from this layer.
- Or apply filter: brightness(50%) only to the image layer, and skip applying it to the highlight divs.
4. Use Z-Index and Pointer Events Strategically
- Set the highlight divs with
z-index: 2or higher so they sit above the overlay. - Make sure their position is absolute, relative to the image container.
- If darkening is achieved via hover on a parent container, ensure that the dim effect does not target child elements like the highlight divs.
5. Check Webflow Interactions Targeting
- In Webflow interactions, be careful not to target “All elements inside” if the goal is to dim only the background.
- Structure your interaction so that only the background or overlay div is affected, not the highlight areas.
Summary
To prevent highlighted areas from being darkened in Webflow image maps, separate the overlay effect from the highlight elements by using absolute positioning, correct z-index, and targeted interactions. Avoid using native HTML image maps; instead, use styled div blocks to simulate highlight zones that remain unaffected by overlay effects.