I have seen this site www.entireweb.com
I was wondering how we can make the "Magnyfying Lens" in search box roll over like that.
If you notice it has 3 images..
I know how to do 2 roll overs but where will i put the 3rd one..
Thanks
Please code it if your free :p
there is 3 selectors to think about
:hover
:active
and then the default state of the link/button
you can see it in action here
http://www.jsfiddle.net/rpSgy/
just made an example with images
http://www.jsfiddle.net/ZATzF/
the third is done on mousedown and on mouseup
$('#maglensid').mousedown(function(){
//swap to pressed image
}).mouseup(function(){
//swap to normal image
}).hover(function() {
//swap to hover image
}, function() {
//swap to normal image
});
Here is their css, they are just moving a sprite image about using the css background property. A default position, a hover position and an active (i.e. clicked) position.
.web #front_logo, .web #search_form, .web #search {
background-image: url("../skin_web_glare.png");
}
#search {
background-position: -340px -70px;
cursor: pointer;
height: 44px;
margin: 4px 0 0 7px;
width: 43px;
}
#search:hover {
background-position: -390px -70px;
}
#search:active, #search.active {
background-position: -440px -70px;
}
So I don't think they are actually using any jquery/javascript just css (the way it should be :)).
Related
I have an anchor that changes its background image when hovered with a class class-btn that contains a background-image.
When hovered, it has
a.class-btn:hover
{
background-image('path/to/image-hovered.jpg');
}
When the page loads the first time and you hover this button the first time, it blinks (it takes about half a second to download the hovered image). How to avoid that blinking without JavaScript (only simple css and html is allowed)?
I tried to search Stack Overflow for the similar question, but with no luck.
Just added:
Should I "preload" the hovered image? How?
Should I play with z-index or opacity?
It happens with all browsers and thus the solution should work for all browsers.
Here is a simple and effective css image preloading technique I have used several times.
You can load several images by placing content: url() url() url()... etc.
body:after {
display: none;
content: url('path/to/image-hovered.jpg') url('path/to/another-image-hovered.jpg');
}
The easiest way to avoid this is to make use of image sprites. For a good overview, check out this CSS Tricks article.
That way, you not only solve the flicker problem you're seeing, but will also reduce the number of HTTP requests. Your CSS will look something like:
a.class-btn { background: url('path/to/image.jpg') 0 0 no-repeat; }
a.class-btn:hover { background-position: 0 -40px; }
The specifics will depend on your images. You can also make use of an online sprite generator to make the process easier.
A simple trick I use is to double up the original background image making sure to put the hovered image first
.next {
background: url(../images/next-hover.png) center center no-repeat;
background: url(../images/next.png) center center no-repeat;
&:hover{
background: url(../images/next-hover.png) center center no-repeat;
}
}
No performance hit and very simple
Or if you're not using SCSS yet:
.next {
background: url(../images/next-hover.png) center center no-repeat;
background: url(../images/next.png) center center no-repeat;
}
.next:hover{
background: url(../images/next-hover.png) center center no-repeat;
}
If you do this:
#the-button {
background-image: url('images/img.gif');
}
#the-button:before {
content: url('images/animated-img.gif');
width:0;
height:0;
visibility:hidden;
}
#the-button:hover {
background-image: url('images/animated-img.gif');
}
This will really help!
See here:
http://particle-in-a-box.com/blog-post/pre-load-hover-images-css-only
P.S - not my work but a solution I found :)
#Kristian's method of applying hidden 'content: url()' after the body didn't seem to work in Firefox 48.0 (OS X).
However, changing "display: none;" to something like:
body:after {
position: absolute; overflow: hidden; left: -50000px;
content: url(/path/to/picture-1.jpg) url(/path/to/picture-2.jpg);
}
... did the trick for me. Perhaps Firefox won't load hidden images, or maybe it's related to rendering(?).
You can preload images
function preloadImages(srcs, imgs, callback) {
var img;
var remaining = srcs.length;
for (var i = 0; i < srcs.length; i++) {
img = new Image();
img.onload = function() {
--remaining;
if (remaining <= 0) {
callback();
}
};
img.src = srcs[i];
imgs.push(img);
}
}
// then to call it, you would use this
var imageSrcs = ["src1", "src2", "src3", "src4"];
var images = [];
preloadImages(imageSrcs, images, myFunction);
This is a non-CSS solution: if the hover images are in one directory and have a common naming convention, for example contain a substring '-on.', it is possible to select the file names and put it into the HTML as a series of:
<img src='...' style='display: none' />
If they are the same dimensions, one possibility is to draw the two images directly on top of each other, with the CSS :hover class for the top image having display: none;
This way both images will be preloaded, but hovering will make the second visible.
The "double up the original background image" trick didn't work for me so I used another css trick:
.next {
background: url(../images/next.png) center center no-repeat;
}
.next:hover {
background: url(../images/next-hover.png) center center no-repeat;
}
.next:after {
content: url(../images/next-hover.png);
display: none;
}
This technique works nicely for me and ensures not only is the hover image pre-loaded, but it's also ready and waiting to be displayed. (Most other solutions rely on switching the background image on hover, which just seems to take the browser a bit of time to figure out, however much the image is pre-loaded.)
Create :before and :after pseudo elements on the container with the two images, but hide the one you want to see on hover. Then, on hover, switch the visibility.
So long as they both share the same size and positioning rules, you should see a neat swap.
.image-container {
&:before { display: block; background-image: url(uncovered.png); }
&:after { display: none; background-image: url(uncovered.png); }
}
.image-container:hover {
&:before { display: none; }
&:after { display: block; }
}
I had the same issue.
After trying everything related with css i can not solve the problem.
What finally solved the problem was simulating that someone hovers the element.
The css is the normal one.
CSS
#elemName{
/* ... */
}
#elemName:hover{
/* change bg image */
}
JS
var element = document.getElementById('elemName');
var event = new MouseEvent('mouseover', {
'view': window,
'bubbles': true,
'cancelable': true
});
element.dispatchEvent(event);
Just change the size of the background image, instead of the source of it! So...
a.class-btn {
background-image: url('path/to/image-hovered.jpg');
background-size: 0;
}
a.class-btn:hover {
background-size: auto;
}
The best way to do this is to just insert the images onto the webpage and set display to none.
I have a animated gif as a background image which is activated when you hover a link.
But once activated it just keeps on playing even though you're not hovering the link and even though it isn't visible.
Are there any ways to restart the gif every time you hover over the link, using css only?
Here is my code so far
<div id="zichtbaar">
Zichtbaar<span></span>
and the CSS
#zichtbaar a span {
display: none;
background-image: url("background.gif");
background-size: contain;
background-position: fixed;
background-repeat: no-repeat;
position: fixed;
width: 100%;
height: 100%;
left: 25%;
top: 35px;
z-index:-9999;
#zichtbaar a:hover span {
display:block;
}
I'd create a second image, a still in .png format, and would change the source of the image on :hover so that when the user hovers the image, the source is the animated gif, and when he mouses out, the source is replaced with the still image and that would visually reset the image. Something like this:
#zichtbaar a span {
background-image: url("StillImageOfTheGif.png");
}
#zichtbaar a span :hover {
background-image: url("background.gif");
}
In addition, I'd add an <img> element of the still .png image with a hidden attribute so that the image loads when the page loads and thus avoid a delay when the user triggers the hover.
Edit based on comments and javascript version.
<a id="zichtbaar">Zichtbaar</a>
<img id="DasBild" src="https://jepen84.github.io/github.io/images/static_ice.gif" />
function Start() {
$('#zichtbaar').on({
mouseenter: function () { $('#DasBild').prop('src', 'https://jepen84.github.io/github.io/images/ice_t.gif') },
mouseleave: function () { $('#DasBild').prop('src', 'https://jepen84.github.io/github.io/images/static_ice.gif') }
});
}
$(Start);
You need to use hover
#zichtbaar a span :hover {
background-image: url("background.gif");
<img src="URL_OF_FIRST_IMAGE_SOURCE"
onmouseover="this.src='URL_OF_SECOND_IMAGE_SOURCE'"
onmouseout="this.src='URL_OF_FIRST_IMAGE_SOURCE_AGAIN'" />
I also had the same issues and this solution solved my problem perfectly it also help me tidy my CSS stylesheet cause it also replaces the use of stating a hover effect
Check it out here on fiddle: a link!
I would like to add actions to this image
So when the user hovers over red dot, some information appears, or when clicks (modal from bootstrap appears). I am using bootstrap, and spreading divs over the image don't give normal result. I want it to be responsive. Any ideas?
there should be a onhover method for javascript on the html dom.
<div id="point1" onmouseover="doHover('point1', true);" onmouseout="doHover('point1', false);"></div>
So, you have a problem with the divs?
function doHover(id, bool) {
var obj = document.getElementById("hoverPoint"+id);
if(bool) {
obj.style.backgroundColor="green";
}else {
obj.style.backgroundColor="blue";
}
}
.hoverPoint {
position:absolute;
top: 0px;
left: 0px;
width:100px;
height:100px;
display:block;
background-color: blue;
opacity: .6;
}
#hoverPoint1 {
top: 130px;
left: 135px;
}
<img src="http://i.stack.imgur.com/sUTxI.png" style="width:777px; height:292px" />
<div class="hoverPoint" id="hoverPoint1" onmouseover="doHover(1,true);" onmouseout="doHover(1,false);"></div>
I solved the problem by deleting red dots in photoshop and then adding them using pure html (I made buttons with background image of red dots) then I placed this dots randomly on the roadmap
I would like to hover over div id-"RollOver1" and be able to change the background to a different image from the main one. Only pasted the HTML for the rollover div cant use jscript so is there a way in HTML or ....?
<div id="RollOver1" style="position:absolute;overflow:hidden;left:152px;top:397px;width:183px;height:183px;z-index:4">
<a href="./car.html">
<img class="hover" alt="" src="images/Enter_02.jpg" style="left: 0px; top: 0px; width: 183px; height: 183px; display: block;">
<span style="display: none;"><img alt="" src="images/index_01.jpg" style="left:0px;top:0px;width:183px;height:183px"></span>
</a>
</div>
You can do this with the following code:
#RollOver1 {
background:url(INITIAL_BACKGROUND);//here use the url of the background you want when is NOT on hover
}
#RollOver1:hover {
background:url(BACKGROUND_ON_HOVER);//here use the url of the bg you want when is on hover
}
You can use :hover pseudo class:
#RollOver1 {
background: url('img1.png');
}
#RollOver1:hover {
background: url('img2.png');
}
But you will usually see "glich" between changes of images, because second image will take some time to be loaded.
To avoid that, use image sprite. Put both images (normal and hover) to single image and than use css background-position
#RollOver1 {
background: url('sprite.png') no-repeat 0 0;
}
#RollOver1:hover {
background-position: -80px -90px;
}
It will be more efficient way to load small images (like buttons, icons and so on).
Check this link
Using JQuery you can try
$(document).on("mouseover", "#RollOver1", function(e) {
$(this).css("background", "url(sampleImage.png) no-repeat");
}
});
use the css pseudo class :hover
You can use below styles
.RollOver1:hover {
background-image: url('paper.gif');
}
I have an anchor that changes its background image when hovered with a class class-btn that contains a background-image.
When hovered, it has
a.class-btn:hover
{
background-image('path/to/image-hovered.jpg');
}
When the page loads the first time and you hover this button the first time, it blinks (it takes about half a second to download the hovered image). How to avoid that blinking without JavaScript (only simple css and html is allowed)?
I tried to search Stack Overflow for the similar question, but with no luck.
Just added:
Should I "preload" the hovered image? How?
Should I play with z-index or opacity?
It happens with all browsers and thus the solution should work for all browsers.
Here is a simple and effective css image preloading technique I have used several times.
You can load several images by placing content: url() url() url()... etc.
body:after {
display: none;
content: url('path/to/image-hovered.jpg') url('path/to/another-image-hovered.jpg');
}
The easiest way to avoid this is to make use of image sprites. For a good overview, check out this CSS Tricks article.
That way, you not only solve the flicker problem you're seeing, but will also reduce the number of HTTP requests. Your CSS will look something like:
a.class-btn { background: url('path/to/image.jpg') 0 0 no-repeat; }
a.class-btn:hover { background-position: 0 -40px; }
The specifics will depend on your images. You can also make use of an online sprite generator to make the process easier.
A simple trick I use is to double up the original background image making sure to put the hovered image first
.next {
background: url(../images/next-hover.png) center center no-repeat;
background: url(../images/next.png) center center no-repeat;
&:hover{
background: url(../images/next-hover.png) center center no-repeat;
}
}
No performance hit and very simple
Or if you're not using SCSS yet:
.next {
background: url(../images/next-hover.png) center center no-repeat;
background: url(../images/next.png) center center no-repeat;
}
.next:hover{
background: url(../images/next-hover.png) center center no-repeat;
}
If you do this:
#the-button {
background-image: url('images/img.gif');
}
#the-button:before {
content: url('images/animated-img.gif');
width:0;
height:0;
visibility:hidden;
}
#the-button:hover {
background-image: url('images/animated-img.gif');
}
This will really help!
See here:
http://particle-in-a-box.com/blog-post/pre-load-hover-images-css-only
P.S - not my work but a solution I found :)
#Kristian's method of applying hidden 'content: url()' after the body didn't seem to work in Firefox 48.0 (OS X).
However, changing "display: none;" to something like:
body:after {
position: absolute; overflow: hidden; left: -50000px;
content: url(/path/to/picture-1.jpg) url(/path/to/picture-2.jpg);
}
... did the trick for me. Perhaps Firefox won't load hidden images, or maybe it's related to rendering(?).
You can preload images
function preloadImages(srcs, imgs, callback) {
var img;
var remaining = srcs.length;
for (var i = 0; i < srcs.length; i++) {
img = new Image();
img.onload = function() {
--remaining;
if (remaining <= 0) {
callback();
}
};
img.src = srcs[i];
imgs.push(img);
}
}
// then to call it, you would use this
var imageSrcs = ["src1", "src2", "src3", "src4"];
var images = [];
preloadImages(imageSrcs, images, myFunction);
This is a non-CSS solution: if the hover images are in one directory and have a common naming convention, for example contain a substring '-on.', it is possible to select the file names and put it into the HTML as a series of:
<img src='...' style='display: none' />
If they are the same dimensions, one possibility is to draw the two images directly on top of each other, with the CSS :hover class for the top image having display: none;
This way both images will be preloaded, but hovering will make the second visible.
The "double up the original background image" trick didn't work for me so I used another css trick:
.next {
background: url(../images/next.png) center center no-repeat;
}
.next:hover {
background: url(../images/next-hover.png) center center no-repeat;
}
.next:after {
content: url(../images/next-hover.png);
display: none;
}
This technique works nicely for me and ensures not only is the hover image pre-loaded, but it's also ready and waiting to be displayed. (Most other solutions rely on switching the background image on hover, which just seems to take the browser a bit of time to figure out, however much the image is pre-loaded.)
Create :before and :after pseudo elements on the container with the two images, but hide the one you want to see on hover. Then, on hover, switch the visibility.
So long as they both share the same size and positioning rules, you should see a neat swap.
.image-container {
&:before { display: block; background-image: url(uncovered.png); }
&:after { display: none; background-image: url(uncovered.png); }
}
.image-container:hover {
&:before { display: none; }
&:after { display: block; }
}
I had the same issue.
After trying everything related with css i can not solve the problem.
What finally solved the problem was simulating that someone hovers the element.
The css is the normal one.
CSS
#elemName{
/* ... */
}
#elemName:hover{
/* change bg image */
}
JS
var element = document.getElementById('elemName');
var event = new MouseEvent('mouseover', {
'view': window,
'bubbles': true,
'cancelable': true
});
element.dispatchEvent(event);
Just change the size of the background image, instead of the source of it! So...
a.class-btn {
background-image: url('path/to/image-hovered.jpg');
background-size: 0;
}
a.class-btn:hover {
background-size: auto;
}
The best way to do this is to just insert the images onto the webpage and set display to none.