What is the best way to replicate a CSS zoom effect in Firefox?

After implementing this code for a menu on my website, I noticed that it is not compatible with Firefox when testing it across different browsers.

li {
    display: inline-block;
    list-style: none inside none;
    text-align: center;
}
li a:before {
    content:"";
    display: block;
    border-radius: 50%;
    width: 62px;
    height: 62px;
    background: #F00;
    margin: 0 auto 14px;
    transition: all .2s;
}
ul.small li a:before {
   -webkit-transform: scale(0.7);
   -moz-transform: scale(0.7);
   -ms-transform: scale(0.7);
   -o-transform: scale(0.7);
   background: blue;
}
ul.small-zoom li a:before {
    zoom: 0.7;
    background: green;
}

Upon visiting this jsfiddle link, I attempted various solutions but failed to achieve the desired result of changing the dimensions of the list item based on the a:before element due to the use of the scale() function which did not alter the li dimension.

Is there any workaround to make this work in Firefox without modifying the dimensions of the li element?

htmlcssfirefoxzoomingscale

Answer №1

My preferred method for creating a zoom effect is using JavaScript. Although most modern browsers support this feature, I have encountered issues with Firefox, which lacks support in some cases.

Below is a simple example of how to implement a basic solution:

<div data-zoom="0.5" style="zoom: 0.5">
  Scaled down element
</div>

if (! ('zoom' in document.createElement('div').style)) {
  setInterval(() => {
    zoomed.forEach(e => {
      const scale = Number(e.getAttribute('data-zoom'))
      e.style.transform = 'none !important'
      e.style.marginRight = '0 !important'
      e.style.marginBottom = '0 !important'
      const width = e.clientWidth
      const height = e.clientHeight
      e.style.transform = `scale(${scale})`
      e.style.transformOrigin = '0 0'
      const pullUp = height - height * scale
      const pullLeft = width - width * scale
      e.style.marginBottom = `${-pullUp}px`
      e.style.marginRight = `${-pullLeft}px`
    })
  }, 100)
}

Answer №2

After some experimentation, I came up with a simple but effective solution that fits my needs and could potentially benefit others as well.

.enlarged {
  transform: scale(0.5);
  margin-left: -25px;
}

This code snippet transforms the .enlarged element to be half its original size and adjusts the left margin accordingly.

Admittedly, there are drawbacks to this method - it overrides any existing transformations and margins, requires manual entry of negative margins for each element (or dynamic calculation using JavaScript), among other potential limitations.

Nevertheless, in my particular scenario, this approach proved to be quite effective.

Answer №3

There is no HTML standard attribute called zoom.

The reason your code isn't functioning properly on modern browsers is due to the absence of unprefixed (standard) versions of certain properties. Take for instance when using transform:

-webkit-transform: scale(0.7);
-moz-transform: scale(0.7);
-ms-transform: scale(0.7);
-o-transform: scale(0.7);
transform: scale(0.7);

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