I'm very new to HTML and CSS but I've strung together some code that makes my images enlarge a little bit when my mouse hovers over them. However, the images sometimes don't enlarge over each other, some stay behind others because they are positioned closely together. Does anyone know how to make them ignore the other images when they enlarge?
Here's my code:
img.one {
position: absolute;
cursor: pointer;
top: 10px;
left: 10px;
transition: all .2s ease-in-out;
}
img.one:hover {
transform: scale(1.1);
}
Use the z-index property to control which elements are in front of others.
img.one:hover {
transform: scale(1.1);
z-index: 1;
}
Related
So I have this link item animation where by default, it's just text (:hover makes it change color), but if the link has the class of ".linke-active", :hover now adds an animated underline via a ::before pseudoelement.
So what I did was this:
&.link-active {
position: relative;
&::before {
content: ' ';
position: absolute;
height: 2px;
background: red;
bottom: 10px;
width: 100%
transition: 250ms ease-in-out;
transform: scaleX(0);
transform-origin: left;
}
&:hover, &:focus {
&::before {
transform: scaleX(1);
}
}}
So it's pretty straightforward.
It behaves perfectly when I move my mouse over the active link, and when I move my mouse over the inactive link.
My problem is that when I do the INITIAL CLICK that leads to the link gaining the .link-active the :before psuedoelement is there automatically, and since my mouse is obviously ON the link during the click, the psuedolement is in it's hover-state.
Is there any way to make the pseudolement NOT be in it hover-state on the initial click? Or is there a better way to trigger this style ruleset?
Thanks!
I found some code for a link hover effect and while it works fine, I don't understand why it works.
Specifically:
#navbar a:after {
content: '';
position: absolute;
left: 0;
display: inline-block;
height: 1em;
width: 100%;
border-bottom: 1px solid;
margin-top: 10px;
opacity: 0;
-webkit-transition: opacity 0.35s, -webkit-transform 0.35s;
transition: opacity 0.35s, transform 0.35s;
-webkit-transform: scale(0,1);
transform: scale(0,1);
}
#navbar a:hover:after {
opacity: 1;
-webkit-transform: scale(1);
transform: scale(0.9);
}
This produces an underline effect on the link when hovering.
My question is:
1.) Why doesn't the transition/transform on the a:after take place when the page loads? Why does it only occur when hovering over the element (even though it's not within the hover)?
Although I can obviously see what is occurring from viewing the page, trying to better understand how exactly this works.
I have added one fiddle where you can go and check the code
[https://jsfiddle.net/vickykumarui/96xw3fzv/][1]
Now let me explain what is happening on hover
Initially you have add this code for pseudo element after
transform: scale(0.1); // The scale() function is specified with either one or two values, which represent the amount of scaling to be applied in each direction.
opacity: 1; // initially after element is not visible
Now on hover this property changes to
transform: scale(0.9);
opacity: 1;
When these properties changes it does not changes suddenly but it changes slowly in .35s in animated way from this code
transition: opacity 0.35s, transform 0.35s;
transition is applied on both property opacity and transform and 0.35s is time of transition
Note: Based on your comment if you change initial property to
opacity: 1;
transform: scale(0.9);
You see that coming initially also
It does happen. Change the opacity to 1 in the first rule. You don't see it because it's technically hidden when the page loads. When you hover, the opacity becomes one and becomes visible.
CSS transform scale() function appears to have a bug on Safari when it's used on elements with a border.
I'm trying to zoom an image on mouse over using transform: scale() function but if the image has a border then it gets pixelated when scaled.
Here is a sample of the same element with the same CSS rules applied (except the border):
Code example: https://jsfiddle.net/m6g4kw30/
div {
text-align: center;
}
img {
height: 100px;
-webkit-transition: all .3s ease;
-moz-transition: all .3s ease;
-o-transition: all .3s ease;
-ms-transition: all .3s ease;
transition: all .3s ease;
border: 1px solid #000;
margin: 20px;
}
img.noborder {
border: none;
}
img:hover {
-webkit-backface-visibility: hidden;
backface-visibility: hidden;
-webkit-transform: translateZ(0) scale(5);
-moz-transform: scale(5);
-ms-transform: scale(5);
-o-transform: translateZ(0) scale(5);
transform: translateZ(0) scale(5);
}
<div>
<img src="https://via.placeholder.com/1000.png" alt="">
<img src="https://via.placeholder.com/1000.png" class="noborder" alt="">
</div>
CSS transform scale() function appears to have a bug on Safari when it's used on elements with a border.
You can say that again! Unfortunately, the reported bug(s) for this (and similar) issues go back many years, with the following bug referenced in most:
https://bugs.webkit.org/show_bug.cgi?id=27684 (Opened in 07/2009)
If you didn't catch the date, it's a 10 year old bug that's still causing developers issues today! YIKES.
Basically, the issue comes down to Safari rasterizing the layer. On transform/scale, it resizes the layer, however it does not re-render the rasterized layer. In your use-case, the rasterized image is scaled up, but the text/image is blurry.
As for a workaround/fix? There are a couple ways you can "address" this:
1) Force a re-render
A quick/easy fix is to force Safari to re-render your layer when you transform. One way this can be achieved is by applying a CSS property which you then change after transforming (some people have success changing a background-color, for example). For your specific use case, I had luck with the following combination:
img {
outline: 1px solid #000;
border: none;
}
img:hover {
outline: none;
border: 1px solid #000;
}
By toggling those specific values, I was able to force Safari to re-render the rasterized layer, thus rendering a sharp image (similar to the non-border example). Here's a JSFiddle with the full code example: https://jsfiddle.net/gc56brfh/
2) Scale down, then up
Another workaround, documented here, is to set the element's initial size to the "scaled up" dimensions, and then scale down the element until you're ready to scale it up. That way, the element is rasterized to the correct dimensions.
CSS wise, that may look like:
img {
-webkit-transform: translateZ(0) scale(0.2);
height: 250px;
}
img:hover {
-webkit-transform: translateZ(0) scale(1);
}
In the above, we've set the initial size of the img to 250px (this is based on your original css, with images being 50px and then scaled up 5). We then scale down the image by 0.2, resulting in 50px. On hover, we then scale back up to 250px by setting scale(1).
Here's an updated JSFiddle: https://jsfiddle.net/df2zqgnx/
One thing to note is that other CSS properties might need to be updated with this workaround. For example, you'll notice in the fiddle I also needed to update the border from 1px to 5px to compensate for the scaling down.
Anyway, hope this was helpful and one of the solutions works for you!
I have blog post with set of images that are enlarged on hover. My problem is that when i enlarge element and it overlaps with other image that is later in page render order then the next image is on top of the enlarged one.
The easy way to stop this is to give some kind of z-index on :hover pseudo selector. But then i have very pesky problem when just after I stop hovering my image then next one is on top of it for fraction of second.
You can see behaviour in this imgur album or on jsfiddle(hover first image)
In short i have following css for hovering effect:
.photo-exp
{
position: relative;
transition: all .4s ease-in-out;
/* some properties deleted which have no connection to hovering effect */
}
.photo-exp:hover
{
transform: scale(1.7);
z-index : 10;
}
It would be very easy to have same effect with javascript and setTimeout function.
But i would like to avoid javascript solution and have some CSS workaround which will change slowly z-index in time after hovering ends.
I tried CSS transition but it is not working
I tried to eddit this snippet but i could not get it working in the way that i wanted.
You need to assign a new transition-delay property, and remove it as soon as the hover begins. That way the z-index can persist for some time even after the mouse is gone. It's a little counter-intuitive; I would expect that the delay should be added on hover and removed off-hover but the opposite works on chrome:
.expander {
position: absolute;
left: 50%; top: 50%;
width: 100px; height: 100px;
margin-top: -50px; margin-left: -50px;
z-index: 1;
transition: transform 400ms 0ms, z-index 0ms 400ms; /* That final "400ms" delays the z-index transition! */
}
.expander:hover {
transform: scale(1.8);
z-index: 2; /* A hovered expander is always on top */
transition: transform 400ms 0ms, z-index 0ms 0ms; /* Remove the z-index transition delay on hover. This is counter-intuitive but works. */
}
.expander:nth-child(1) {
margin-left: -105px;
background-color: #a00000;
}
.expander:nth-child(2) {
margin-left: 5px;
background-color: #00af00;
}
<div class="expander"></div>
<div class="expander"></div>
Note that (unless you try to mouse around really quickly in order to break it) neither square bleeds through the other, not even for a frame, when they expand.
I've also finally managed to solve by myself my problem.
It's more intuitive than #Gershom Maes answer in my opinion.
Fiddle
I have used animation system to achieve the result.
#keyframes nohovering {
0% { z-index: 9; }
100% { z-index: 1; }
}
#keyframes hovering {
0% { z-index: 10; }
100% { z-index: 10; }
}
First one will be by default fired on selector without :hover like this
animation: nohovering 0.9s;
It will guarantee that after i complete my hovering it will go smoothly down from z-index 9 to z-index 1. After hovering my image will be on top of other images. When i tested it for z-index 10 for 0% i had a little glitch when i tried to hovered 2 images at same time and then hover only 1 of them.
For my hovering selector I used:
animation: hovering 0.1s infinite;
It will just loop my image on z-index 10. On hover it will always be on top of the other images. Short animation time guarantee that it will go off after hovering stopped in maximum time of 0.1s.
After deleting normal static z-indexes it works.
I have a series of images on-screen in bootstrap 3 panels (3 per row for large screens).
When you click on an image I have it set up so that it applies a CSS class which does a 'scale(2)' on the image, this all works fine, but I want those images to be visible and scale themselves on screen.
Images in column 1 end up slightly off-screen to the left, Images in column 3 end up slightly off-screen to the right, Images in column 2 are for the most part fine.
Ideally I would like them to scale into the centre of the viewport itself, or at least just not render off-screen at all.
CSS:
.zoom {
-webkit-transition: all 0.35s ease-in-out;
-moz-transition: all 0.35s ease-in-out;
transition: all 0.35s ease-in-out;
cursor: -webkit-zoom-in;
cursor: -moz-zoom-in;
cursor: zoom-in;
}
.zoom-click {
-ms-transform: scale(2);
-moz-transform: scale(2);
-webkit-transform: scale(2);
-o-transform: scale(2);
transform: scale(2);
position:relative;
z-index:100;
border: 2px solid DarkRed;
}
Upon clicking on the image it adds/removes the 'zoom-click' class.
I have tried using 'translate' along with the 'scale' however it is relative to the image itself, have also tried using 'transform-origin'.
**Update: ** Have created a jsfiddle showing how it is at present (minus the knockoutjs code which actually creates each of the 'main-image-panel' panels.
https://jsfiddle.net/tczh1sxq/2/
Figured it out. I always seem to have difficulty at times with the more complex CSS.
Anyway, fixed it by doing:
#images > div .zoom-click { transform-origin: top; }
#images > div:nth-child(3n+0) .zoom-click { transform-origin: top right; }
#images > div:nth-child(3n+1) .zoom-click { transform-origin: top left; }
Be nice if I could get it to actually go into the centre of the viewport, but this will suffice, looks much neater now that it isn't off-screen on the edges.
this might help,
.zoom-click
{
position: absolute;
height: 50%;
width: 50%;
top: 50%;
left: 50%;
transform: translate(-50%,-50%);
}
}
You can use any height/ width you want. If the image is contained within any positioned element, you can use position: fixed and it will still work
Just an idea tried to resolve your issue. I used different tranform-origin based on child element index value as like nth-child,
$('.child').click(function(){
var index = $(this).index()+1;
if((index%3)==1){
$(this).find('img').css({
'transform': 'scale(2)',
'transform-origin': 'top left'
});
}
else if((index%3)==2){
$(this).find('img').css({
'transform': 'scale(2)',
'transform-origin': 'top'
});
}
else if((index%3)==0){
$(this).find('img').css({
'transform': 'scale(2)',
'transform-origin': 'top right'
});
}
});
Find this fiddler for reference.