Emphasize an element when hovering over it

I am looking to create a custom hover effect for highlighting elements in a Chrome extension I'm developing. The goal is to achieve a similar behavior to using the magnifying glass tool in Chrome Dev Tools, where only the hovered element is highlighted.

After exploring CSS pseudo :hover and trying various jQuery solutions, I have found that these methods also apply the hover effect to container elements due to event bubbling. Preventing this behavior with CSS alone seems impossible.

One attempted solution involved using JavaScript to remove and add a specific class on mouseover, but it still selected parent elements along with the target element.

.hova {
    background-color: pink;
}

Another approach was using CSS opacity to highlight the element, but ultimately had the same issue with selecting parent elements instead of just the targeted one.

It seems like there should be a straightforward solution out there, potentially being over complicated by the fact that it's part of a Chrome extension development. I'm open to any suggestions or advice on achieving the desired hover effect.

Answer №1

Is this the solution you're looking for? http://jsbin.com/vidojamece/1/

Instead of applying the class directly to $(this) in the event handler, apply it to e.target (span) and prevent bubbling up to the div by returning false:

$('body').children().mouseover(function(e){
    $(".hova").removeClass("hova");     
    $(e.target).addClass("hova");
  return false;
}).mouseout(function(e) {
    $(this).removeClass("hova");
});

Answer №2

To prevent repeating the process for each element behind, it is recommended to utilize the target element instead of 'this' when hovering over and incorporate stopPropagation:

$('body').children().mouseover(function(e){

    e.stopPropagation();

    $(".highlight").removeClass("highlight");     
    $(e.target).addClass("highlight");
}).mouseout(function(e) {
    $(e.target).removeClass("highlight");
});

Answer №3

If you want to add some flair to your website, you can use CSS and JavaScript to achieve it:

*:hover {
    background-color: pink;
}

You can also target specific elements like this:

div:hover {
    background-color: pink;
}

In JavaScript:

$('body').children().each(function() {
    $(this).hover(function() {
        $(".hova").removeClass("hova");     
        $(this).addClass("hova");
    }, function() {
        $(this).removeClass("hova");
    });
});

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