Invoke Javascript through CSS selector

On my webpage, I have implemented a mousemove-mask feature that was inspired by an existing codepen. However, there is one significant issue that I can't seem to resolve on my own. Despite my attempts to fix it, I believe someone with more expertise could easily solve this problem.

The main issue lies in the fact that the current code assumes an "empty" webpage layout without any other content. Since I want to apply this functionality to only a specific section of my site, I need the JavaScript to target that particular element. As it stands now, the mask covers the entire page and displays black space when the cursor moves outside the designated HTML area with headings or background images. To address this, I attempted to assign a CSS ID ("html-container") to the HTML container so that the JavaScript is triggered only when the mouse hovers over this element:

// jQuery
        $("#html-container").hover(
            function(event) {
                // Execute code when mouse enters the element
            },
            function (event) {
                // Execute code when mouse leaves the element
            }
         );

While I believe this approach is correct, I am uncertain about how to modify the code effectively for it to work as intended. The existing code snippet is provided above. I would greatly appreciate any assistance in resolving this issue.

Answer №1

It seems to me that you are looking for something like this: https://jsfiddle.net/vh4607qo/

This is what I did:

  1. I eliminated the multiply mask from the multiply div as it seemed unnecessary.

  2. Then, I assigned a class to all elements requiring the mask, using a dummy class .t

  3. I modified

    $(document).mousemove(function(e)...
    to $(".t").mousemove(function(e)...

Keep the mentioned steps to achieve the desired functionality (based on the comment), while the rest of the procedures remain intact. Experiment with it to determine which effect suits your preference more. https://jsfiddle.net/b9e3vopL/

  1. Next, I removed all instances of <br> tags, which were causing interference with the masking process.

  2. Furthermore, I incorporated the following CSS:

.projects {
  padding: 15px 0;
}

.projects:not(.t) {
  background-color: white;
  z-index: 99;
}

This ensures that all .t elements are displayed in front of the masking circle with a higher z-index value.

Admittedly, some aspects may seem unconventional, but I believe they will steer you in the right direction.

Additionally, consider the browsers you intend to support: https://caniuse.com/#search=masks

Despite their appeal, CSS masks have limited browser support, making them challenging to implement universally.

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