I have some CSS that on hover, a CSS transition effect will moves a div.
The problem, as you can see in the example, is that the translate transition has the horrible side effect of making the image in the div move by 1px down/right (and possibly resize ever so slightly?) so that it appears out of place and out of focus...
The glitch seems to apply the whole time the hover effect is applied, and from a process of trial and error I can safely say only seems to occur when the translate transition moves the div (box shadow and opacity are also applied but make no difference to the error when removed).
The problem only seems to happen when the page has scrollbars. So the example with just one instance of the div is fine, but once more identical divs are added and the page therefore requires a scrollbar the problem strikes again...
This question is related to
css
image
hover
positioning
translate-animation
The answer is
I had a similar problem with blurry text but only the succeeding div was affected. For some reason the next div after the one that I was doing the transform in was blurry.
I tried everything that is recommended in this thread but nothing worked. For me rearranging my divs worked. I moved the div that blurres the following div to the end of parents div.
If someone know why just let me know.
#before
<header class="container">
<div class="transformed div">
<span class="transform wrapper">
<span class="transformed"></span>
<span class="transformed"></span>
</span>
</div>
<div class="affected div">
</div>
</header>
#after
<header class="container">
<div class="affected div">
</div>
<div class="transformed div">
<span class="transform wrapper">
<span class="transformed"></span>
<span class="transformed"></span>
</span>
</div>
</header>
I recommended an experimental new attribute CSS I tested on latest browser and it's good:
image-rendering: optimizeSpeed; /* */
image-rendering: -moz-crisp-edges; /* Firefox */
image-rendering: -o-crisp-edges; /* Opera */
image-rendering: -webkit-optimize-contrast; /* Chrome (and Safari) */
image-rendering: optimize-contrast; /* CSS3 Proposed */
-ms-interpolation-mode: nearest-neighbor; /* IE8+ */
With this the browser will know the algorithm for rendering
I cheated problem using transition by steps, not smoothly
transition-timing-function: steps(10, end);
It is not a solving, it is a cheating and can not be applied everywhere.
I can't explain it, but it works for me. None of another answers helps me (OSX, Chrome 63, Non-Retina display).
Just found another reason why an element goes blurry when being transformed. I was using transform: translate3d(-5.5px, -18px, 0); to re-position an element once it had been loaded in, however that element became blurry.
I tried all the suggestions above but it turned out that it was due to me using a decimal value for one of the translate values. Whole numbers don't cause the blur, and the further away I went from the whole number the worse the blur became.
i.e. 5.5px blurs the element the most, 5.1px the least.
Just thought I'd chuck this here in case it helps anybody.
I've tried around 10 possibly solutions. Mixed them up and they still didn't work correctly. There was always 1px shake at the end.
I find solution by reducing transition time on filter.
This didn't work:
.elem {
filter: blur(0);
transition: filter 1.2s ease;
}
.elem:hover {
filter: blur(7px);
}
Solution:
.elem {
filter: blur(0);
transition: filter .7s ease;
}
.elem:hover {
filter: blur(7px);
}
Try this in fiddle:
.blur {_x000D_
border: none;_x000D_
outline: none;_x000D_
width: 100px; height: 100px;_x000D_
background: #f0f;_x000D_
margin: 30px;_x000D_
-webkit-filter: blur(10px);_x000D_
transition: all .7s ease-out;_x000D_
/* transition: all .2s ease-out; */_x000D_
}_x000D_
.blur:hover {_x000D_
-webkit-filter: blur(0);_x000D_
}_x000D_
_x000D_
.blur2 {_x000D_
border: none;_x000D_
outline: none;_x000D_
width: 100px; height: 100px;_x000D_
background: tomato;_x000D_
margin: 30px;_x000D_
-webkit-filter: blur(10px);_x000D_
transition: all .2s ease-out;_x000D_
}_x000D_
.blur2:hover {_x000D_
-webkit-filter: blur(0);_x000D_
}<div class="blur"></div>_x000D_
_x000D_
<div class="blur2"></div>I hope this helps someone.
You need to apply 3d transform to the element, so it will get its own composite layer. For instance:
.element{
-webkit-transform: translateZ(0);
transform: translateZ(0);
}
or
.element{
-webkit-transform: translate3d(0,0,0);
transform: translate3d(0,0,0);
}
More about layer creation criteria you can read right here: Accelerated Rendering in Chrome
An explanation:
Examples (hover green box):
- Problem: Transition may cause blink effect on sibling elements (OSx Lion, Chrome 30)
- Solution: An element on its own composite layer
When you use any transition on your element it cause browser to recalculate styles, then re-layout your content even if transition property is visual (in my examples it is an opacity) and finaly paint an element:
The issue here is re-layout of the content that can make an effect of "dancing" or "blinking" elements on the page while transition happens. If you will go to settings, check "Show composite layers" checkbox and then apply 3d transform to an element, you will see that it gets it's own layer which outlined with orange border.
After element gets its own layer, browser just needs to composite layers on transition without re-layout or even paint operations so problem have to be solved:
Scaling to double and bringing down to half with zoom worked for me.
transform: scale(2);
zoom: 0.5;
filter: blur(0)
transition: filter .3s ease-out
transition-timing-function: steps(3, end) // add this string with steps equal duration
I was helped by setting the value of transition duration .3s equal transition timing steps .3s
Had the same problem with embeded youtube iframe (Translations were used for centering iframe element). None of the solutions above worked until tried reset css filters and magic happened.
Structure:
<div class="translate">
<iframe/>
</div>
Style [before]
.translate {
transform: translateX(-50%);
-webkit-transform: translateX(-50%);
}
Style [after]
.translate {
transform: translateX(-50%);
-webkit-transform: translateX(-50%);
filter: blur(0);
-webkit-filter: blur(0);
}
None of this worked, what worked for me is scaling image down.
So depending on what size you want the image or what resoultion your image is, you can do something like this:
.ok {
transform: perspective(100px) rotateY(0deg) scale(0.5);
transition: transform 1s;
object-fit:contain;
}
.ok:hover{
transform: perspective(100px) rotateY(-10deg) scale(0.5);
}
/* Demo Preview Stuff */
.bad {
max-width: 320px;
object-fit:contain;
transform: perspective(100px) rotateY(0deg);
transition: transform 1s;
}
.bad:hover{
transform: perspective(100px) rotateY(-10deg);
}
div {
text-align: center;
position: relative;
display: flex;
}
h3{
position: absolute;
bottom: 30px;
left: 0;
right: 0;
}
.b {
display: flex;
}<center>
<h2>Hover on images</h2>
<div class="b">
<div>
<img class="ok" src='https://www.howtogeek.com/wp-content/uploads/2018/10/preview-11.png'>
<h3>Sharp</h3>
</div>
<div>
<img class="bad" src='https://www.howtogeek.com/wp-content/uploads/2018/10/preview-11.png'>
<h3>Blurry</h3>
</div>
</div>
</center>The image should be scaled down, make sure you have a big image resoultion
For me, now in 2018. The only thing that fixed my problem (a white glitchy-flicker line running through an image on hover) was applying this to my link element holding the image element that has transform: scale(1.05)
a {
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
-webkit-transform: translateZ(0) scale(1.0, 1.0);
transform: translateZ(0) scale(1.0, 1.0);
-webkit-filter: blur(0);
filter: blur(0);
}
a > .imageElement {
transition: transform 3s ease-in-out;
}
Try filter: blur(0);
It worked for me
Source: Stackoverflow.com