Customizing the Highlighting Color

Can CSS be used to alter the background color of the list item (

) when the cursor hovers over it within a

element?

Clarification

The original question is unclear regarding the desired behavior. It appears that the intention may have been to modify the background color of the elements.

Attempt and Findings

Attempts to modify the elements' background color have proven unsuccessful, as the system color is always applied.

Alternative Solution

An approach that does partially address the desired behavior is to highlight the entire element when the cursor hovers over it:

<code class="css">select:hover { background-color: red; }</code>

However, this technique exhibits browser-specific differences in behavior:

• Chrome highlights the entire dropdown but not the individual options.
• Firefox highlights both the dropdown and the options, but the highlight remains when the cursor moves away after the options remain visible.

Conclusion

As noted widely, styling form controls reliably is challenging. To explore further, reference the provided documentation.

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