Image shifting/jumping after CSS transition effect with scale transform in Firefox

Question

I have a problem in latest Firefox browser version 34 (system: Windows 7, screen width: 1600px). I made effect with zooming images (in some container) after hover on it. I am using transform: scale(1.1) with transition: transform 0.3s ease-in-out. But when I hover on image, and after image zoom in.. it make some strange 1px-shifting. Some rendering browser bug, but I hope that existing some fix for it.

Most important CSS definition and part of HTML code:

figure {
   display: block;
   overflow: hidden;
   position: relative;
   backface-visibility: hidden;
}
figure img {
   width: 100%;
   transform: scale(1);
   transition: transform 0.3s ease-in-out;
   }
figure:hover img {
   transform: scale(1.1);
}

 <figure>
     <img class="img-responsive" src="http://lorempixel.com/600/400/fashion/7">
 </figure>

Sample with bug is online here: http://templates.silversite.pl/test/jumpingimg/

I saw also that somebody can fix it, but I do not know how, e.g. box "Our recent work" on http://demo.qodeinteractive.com/bridge/

Answer 1

I had a similar problem on my project. All images were position: absolute; and the transform look like that:

figure img{
   transform: translate( -50%, 50%) scale(1);
   position: absolute;
   top: 50%;
   left: 50%;
}

figure img:hover{
   transform: translate( -50%, 50%) scale(1.1);
}

I replace every scale with scale3d and that solved my problem. The final styles look like that:

figure img{
   transform: translate( -50%, 50%) scale3d(1, 1, 1);
   position: absolute;
   top: 50%;
   left: 50%;
}

figure img:hover{
   transform: translate( -50%, 50%) scale3d(1.1, 1.1, 1);
}

Hope that's will fix your problem

Answer 2

I have just run into this same problem now. The solutions here didn't fix the issue, so I'm posting what I did to get this to work.

Like OP I had a container with oveflow hidden and was the same size as the image inside it. The image would scale on hover to create a 'zoom' effect - but when initially starting and ending the transition, the image was "jumping"/growing a tiny bit on the bottom and right-hand side. This made it jumpy and not smooth.

I had calculated the dimensions of my components based off of percentages, which caused them to be non-integers (Chrome). I have a feeling Scale & Scale3d round the pixel values when scaling, which caused this jump. I gave a parent container display:table, which caused all children to have their width/heights be rounded to be an integer value. This fixed the issue for me, and the images now scale smoothly!