Wobbly Image while upscaling - html

I am applying 2 CSS3 transitions to a image. Everything works fine. Only issue. The image wobbles while upscaling. Is there any way to smoothen this out?
DEMO
CSS
div{
width:199px;
height:253;
margin-left:50px;
margin-top:50px;
}
div:hover
{ -webkit-transform: scale(1.2);
-webkit-filter: hue-rotate(180deg);
-webkit-transition:all 2s linear;
}
EDIT: Somehow I notice that the issue is not with the upscale property. If you remove the hue-roate property the images upscales without any jitter. However I need both the effects in my animation.

I placed the transition on the img and transitioned the width instead of scale and it seemed to fix the wobble
FIDDLE
div{
margin-left:50px;
margin-top:50px;
}
img
{
width:199px;
}
img:hover
{ width: 238px;
-webkit-filter: hue-rotate(180deg);
-webkit-transition:all 2s linear;
}

The problem is that the image is being scaled up along different axes at different times because it is not a square image and the floating-point dimensions are being truncated to integers.
The only fix that exists is to artificially make the image element square so that the two dimensions of the image are scaled up in sync, which will eliminate the perceived jitter.
Though, if I could get away with it, I probably just reduce the transition time so that the jitter is not as noticeable.

Related

Trying to zoom in on image over hover

I am creating a website for a project and got stuck with an issue.
I was trying to implement the hover feature, where when I hover over the image it gets zoomed in. That part works nicely, however, I was having an issue when I hover over the last book in the first row. When I hover over that, the entire screen becomes glitchy. This feature is not working as I hoped, i.e. smooth and good to work with. I have attached the image and the code I have.
Thanks for any help!
.books img{
width:200px;
height:300px;
}
.books img:hover {
position: relative;
left: 45px;
width: 300px;
height: 400px;
display: block;
}
I found some code online using -mox-transform and -webkit-transform, however, I have never worked with that before. This seemed complex for me. Any suggestions if I should learn how that works instead of perfecting the above code?
By increasing the width and height on hover the surrounding layout must adapt to that size change. The browser must move the surrounding elements to provide the space for the larger element, that is why it is glitchy.
If you want to do it properly, you will probably have to use transform, as you mentioned.
For your use case it should not be hard. Try this:
.books img {
width: 200px;
height: 300px;
transition: transform 200ms; /* optional transition with 200ms duration */
}
.books img:hover {
transform: scale(1.1); /* scale to 110% */
}
All you need to use is scale property to scale the image. Change your code to this
.books img:hover {
transform: scale(1.5);
}
This should do what you are looking for.
Use transform CSS Property with scale() which is used to increase or decrease the size of an element
.books img:hover {
transform: scale(1.2);
}

Weird glitch when scale and blur an image in chrome

I'm experimenting a "zoom and blur" css effect. So when I hover over an image, it's supposed to blur out and scale a bit, while contained in a div with overflow:hidden.
However, when running in Chrome, there's always a weird glitch. A blurry white border shows up around the container while the transition is going.
I'm wondering if there's a better way of doing it? Or a method of circumventing it? Thanks a lot!
You can see a gif demonstrating the problem: http://imgur.com/SrK5rXq
And the same code running in firefox as a comparison: http://imgur.com/942LBKV
Note the borders within the image.
And below is my code:
<style>
#img0{
width:500px;
height:auto;
}
.hoverBlur{
-webkit-transition:all 0.5s ease;
-moz-transition:all 0.5s ease;
}
.hoverBlur:hover{
-webkit-transform:scale(1.1);
-moz-transform:scale(1.1);
transform:scale(1.1);
-webkit-filter:blur(15px);
-moz-filter:blur(15px);
filter:blur(15px);
}
.container{
margin:200px;
width:500px;
height:333px;
border:1px solid #ccc;
overflow:hidden;
}
</style>
<div class="container">
<img id="img0" src="test.jpg" class="hoverBlur"/>
</div>
This is a REALLY old thread but I ran into this issue and couldn't find the solution published anywhere else so I'm posting it here:
You can fix this by adding a margin to the image that is the same size as the blur size (in this case 15px) then transform: translating the image back into place.
https://jsfiddle.net/zeojxtvb/
So in our example, a blur(15px) is applied to the image. So also apply the following to the image:
img {
...
margin: 15px;
transform: translate(-15px, -15px);
}

Jerky CSS3 transition in Firefox

I am trying to do a simple image fade on rollover - works fine and smooth in Chrome, but Firefox is a bit jumpy. I've tried doing the backface-visibility trick on the container, but still no luck.
Anyone have any ideas?
JSFiddle
HTML
<div class="link-box large">
<div class="image">
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRStwH3maKRqLU8lLOo1XbO6uZIKHRyf2PGv66H6ol5mB0kS_0r" alt="">
</div>
</div>
CSS
.link-box .image img { transition: all .2s ease-out; width:200px; }
.link-box.large { position: relative;}
.link-box.large:hover .image img { opacity: .65; }
My best guess is that setting the width of the image to 200px and leaving the height unspecified is causing the browser to calculate the height of the image. If the height calculates to a nice whole number it isn't an issue. If the height calculates to a decimal it may be the cause of the problem.
In this case the natural dimensions of the image are 275px by 183px.
By changing the width of the image to 200px you are shrinking the image to 72.727272...% of its natural size.
275/200 = 0.727272... Or if you prefer fractions: 275(8/11) = 200
Now running the same equation on the height yields:
183(8/11) = 133.090909...
It looks like, under the normal run of things, the partial pixels are cropped, but during the transition the partial pixels aren't being cropped, and the image is warped slightly to show the partial pixels within the same height.
Cropped down to 133px:
Not cropped and slightly warped:
Now that we have a good hypothesis on what's causing the problem, on to the solutions:
You can hard code the height of the image:
Working Example
.link-box .image img {
transition: all .2s ease-out;
width:200px;
height: 133px; /* manually set the height */
}
Or if you would rather not hard code the height, you can also fix the issue with an anti-alias hack, just add a box-shadow.
Working Example
.link-box.large:hover .image img {
opacity: .65;
box-shadow: 0 0 0 #000; /* add a non-visible box-shadow */
}
Or if you're concerned about the cross-browser compatibility of using a box-shadow, you can also use a transparent border:
Working Example
.link-box .image img {
transition: all .2s ease-out;
width:200px;
border: 1px solid transparent; /* add transparent border */
}
Works good on my Firefox.
Anyway you can try to add some special attributes that will prepare the browser for the transition and actually render the element with possible transformation in mind.
Such an attribute is transform: translate3d(0,0,0);
Like this :
.link-box .image img {
transition: all .2s ease-out;
width:200px;
transform: translate3d(0,0,0);
}
.link-box.large { position: relative;}
.link-box.large:hover .image img { opacity: .65; }

Rotating a banner on hover causes it to spasm

I have an image on my website. When I hover over it I want it to do a 360 spin animation.
I'm currently doing so in CSS:-
.img-responsive:hover {
transition-duration: 2s;
transform:rotate(360deg);
}
However, when the user hovers at the edge of the image, the image rotates and is no longer being hovered over at the edge causing the image to "spasm".
How can I achieve a proper looking and stable rotation? JavaScript would work too.
You can fix it by adding small delay to your transition
Working Demo
.img-responsive:hover {
transition-duration: 2s;
transform:rotate(360deg);
transition-delay: 0.5s;
}
Update:
If you can use animation, You can do this
Updated Demo
.img-responsive {
animation: rotateme;
}
.img-responsive:hover {
animation: rotateme 5s;
}
You can make the image bigger when hovered, so that it's difficult that the user accidentally unhovers
if there is no padding or margin, set
.img-responsive:hover {
transition-duration: 2s;
-webkit-transform:rotate(360deg);
-moz-transform:rotate(360deg);
transform:rotate(360deg);
padding: 50px;
margin: -50px;
}
Increasing the padding to 50px makes sure that the mouse is still on it. Changing the margin in the same amount, but in opposite sense makes it stay at the same location.
fiddle

Keep Transition effect after removing the cursor

I need to change the background-color from red to transparent.
This change should occur when I hover over a div.
The reason is why I need it transparent is so I can show an absolute positioned div under the main div, in other words, when I hover over the parent div, I need to show the child div.
When I move away the cursor from this div, I don't want a reverse-transition, I want the background to stay transparent, I want the blue div to always be there after I move away the cursor.
Since I need a PURE CSS solution (No JS/JQuery), I came into the CSS3 Transition.
<div id="parent">
<div id="child">
</div>
</div>
This is a fiddle (Firefox).
#parent
{
background:red;
-moz-transition:background 1s;
}
#parent:hover
{
background:transparent;
}
I thought about doing this with animation, since I can fake this by giving it a temporary duration to stay transparent, for example.
0% {background:red;}
1% {background:transparent;}
100% {background:transparent;}
But then animation will stop when I move the cursor away.
Note: This may sound ridiculous or stupid, but my intention is bigger than this, this is just one small example.
Take a look at the transition-delay property.
#parent { transition-delay:999999s; }
#parent:hover { transition-delay:0s; }
Fiddle
This way, the hover animation will happen instantly (0s) while the transition to the initial state will only happen after 277 hours without leaving the page. You can increase the value a bit further if necessary, though I believe this value is enough for a real world page. =]
I don't think it's possible with pure CSS. As a compromise you can use JavaScript to add a class to the element and then handle all visuals with CSS.
http://jsfiddle.net/ZvcgP/1/
HTML
<div class="effect">Hover me</div>
CSS
.effect {
background-color: red;
-webkit-transition:background 1s;
transition:background 1s;
}
.effect.anim-done {
background-color: transparent;
}
JS
$('.effect').mouseenter(function () {
$(this).addClass('anim-done');
});
use below code to transiton from red to transparent. and please change 'object' to the class of your object
.object {
background-color: red;
-webkit-transition:background-color 1s linear; /* for webkit supported browsers */
-moz-transition:background-color 1s linear; /* for old mozilla browsers */
-o-transition:background-color 1s linear; /* for opera browsers */
transition:background-color 1s linear; /* for css3 supported browsers */
}
.object:hover {
background-color: transparent;
}