I have an image, the top 80px of which I want to use for some other purpose, and remaining image, I want to set as a full page background image.
I tried setting:
background-position: 0px -80px
but it does not work.
How to properly use css sprite (background position) and full page background image?
Either of these (link or link) will generate a sprite for you and the corresponding css.
Once you have that completed use the css classes for their corresponding areas like:
.image1Background {
background-image: url("thesprite.png"),
left: -80px;
top: 0px;
}
.image2Background {
background-image: url("thesprite.png"),
left: 0px;
top: 0px;
}
<body class="image1Background">
<div class="image2Background">
</div>
</body>
Sprites are generally used for a lot of little icons to reduce the number of requests needed to download them to the client.
i would use a div for the 80px image and the background img as body background.. something like:
body { background-image: url(background.gif) }
#imgtop { height: 100%; width: 100%; background-image: url(80px_image.gif) }
Related
for some time we are struggling with white lines at the edge of the image containers. It occurs when we use the image with src or html elements with background image in css, mostly on mobile views. We tried these scenarios:
div with background-image, background url
div with more than one background urls
images with position:absolute and container position:relative
The only half-solution seems to change image position to absolute while the container is relative and set for example top: -2px. But still, sometimes it occurs especially with zoom on mobile devices.
This bug can be seen between two sections too but only on a mobile device or google chrome developers' device toolbar.
White line bug image
html,body {
padding: 0;
margin: 0;
}
.parent-container {
height: 100vh;
background-color: #600cb5;
}
.child-container {
background-color: #600cb5;
height: 50vh;
}
.child-container:nth-child(2) {
background-image: url('https://res.cloudinary.com/dfvpybkta/image/upload/v1647105459/test/Frame_1_atbkfx.png');
background-repeat: no-repeat;
background-color: white;
background-size: cover;
}
<div class='parent-container'>
<div class='child-container'></div>
<div class='child-container'></div>
</div>
I'd like to create the following effect:
There are two full-screen images on top of each other, but only one is visible. When you move the mouse, the second one is revealed within a circle where the mouse is.
I know how to create the circle that follows the mouse using JS. As for the image overlays, I'm stumped. I fiddled with pseudo-elements, with clip-path and opacity, with radial-gradient, with multiple backgrounds -- to no avail.
Radial-gradient would actually be ideal here, but as far as I know it only accepts colors, not images.
Perhaps a third overlay layer? Any ideas? (If there's already a CodePen that does this and that I've missed, please link to it).
Thanks y'all!
short answer: (and all the code below is commented)
I used background property in a <div> instead of using a <img> tag...
the trick is when you use background-attachment: fixed;
in this example, I used 2 backgrounds from Windows 11 OS and you can see really the trick! one dark and one light...
detailed explanation:
so the a <div> and assigned a background-image to the URL of the light-image
the problem here is: when the div is moving with JS, also the image move...
but I find a solution
make the image fixed, which make the image be always in the same position, also if the image is moving
#circle {
background-attachment: fixed;
/* your code */
}
the problem here is: the image isn't responsive,
but I find solution:
make the image size to cover so it will auto-adjust the size and height of the image automatically to the viewport of the device.
#circle {
background-size: cover;
/* your code */
}
for moving is simple... because we can use Javascript, with an eventListener of mousemove
document.addEventListener('mousemove', (e) => {
/* your code */
});
now solved all the problems, however, I will put some documentations below
documentation that can help you:
CSS background-image MDN
CSS background-attachment MDN
CSS background-size MDN
JS mousemove event MDN
here the code
the code can seem to be long,
but not really because I added a lot of comments so everyone can understand
let circle = document.getElementById('circle');
// on mouse move move the circle
document.addEventListener('mousemove', (e) => {
// make the image move relative to the mouse (make sure that in css you applied position: relative; to the div)
circle.style.left = e.pageX - 100 + 'px'; // 100 is half height of circle, so the cursor is in the middle
circle.style.top = e.pageY - 100 + 'px';
});
body {
margin: 0;
overflow: hidden;
}
#bg-image {
position: fixed;
height: 100vh;
width: 100vw;
/*make the background responsive*/
object-fit: cover;
/* under the circle div*/
z-index: -1;
}
#circle {
height: 200px;
width: 200px;
/* make the the div circle */
border-radius: 50%;
/* important using relative for using top and left in javascript */
position: relative;
/* change the url with the link of image you want */
background-image: url(https://laaouatni.github.io/w11CSS/images/0light.jpg);
/*center the background */
background-position: center;
background-repeat: no-repeat;
/* TRICK: making the background responsive*/
background-size: cover;
/* TRICK: the MAGIC is HERE make the image fixed, so is not moving */
background-attachment: fixed;
}
<!-- background image -->
<img id="bg-image" src=" https://laaouatni.github.io/w11CSS/images/1dark.jpg" alt=" ">
<!-- the circle, and moved with javascript -->
<div id="circle"></div>
please see in full mode,
for better results... you can change the values to something like vh or vw for making this more responsive.
I hope this will help you.
You can use a radial gradient as a mask in CSS.
This snippet has an 'underneath' element which is in fact above the background on the body element.
The mask-image cuts out all but the part of its background which is underneath the non-transparent part.
Obviously you will want to alter the dimensions to fit your use case.
Also, the mousemove does literally that (not looking to see whether mousedown for example) just to give a simple demonstration.
Note that some browsers still require a -webkit- prefix for masks.
<!doctype html>
<html>
<head>
<style>
* {
box-sizing: border-box;
margin: 0;
padding: 0;
}
body {
margin: 0;
background-image: url(https://picsum.photos/id/1016/1024/768);
width: 100vw;
height: 100vh;
background-size: cover;
background-position: center;
}
.underneath {
position: absolute;
width: 100%;
height: 100%;
--x: 50vw;
--y: 50vh;
background-image: url(https://picsum.photos/id/1015/1024/768);
background-size: cover;
background-position: center;
-webkit-mask-image: radial-gradient(black 0 15vmin, transparent 15vmin 30vmin);
-webkit-mask-size: 30vmin 30vmin;
-webkit-mask-repeat: no-repeat;
-webkit-mask-position: calc(var(--x) - 15vmin) calc(var(--y) - 15vmin);
mask-image: radial-gradient(black 0 15vmin, transparent 15vmin 30vmin);
mask-size: 30vmin 30vmin;
mask-repeat: no-repeat;
mask-position: calc(var(--x) - 15vmin) calc(var(--y) - 15vmin);
}
</style>
</head>
<body>
<div class="underneath"></div>
<script>
const underneath = document.querySelector('.underneath');
document.body.addEventListener('mousemove', function() {
underneath.style.setProperty('--x', event.clientX + 'px');
underneath.style.setProperty('--y', event.clientY + 'px');
});
</script>
</body>
I have used a background image on the webpage and used this code in the css which makes it nicely resize when browser is resized.
body{
background: url("images/back.jpg") no-repeat ;
background-size: cover;
}
I need to place some other image on top of the background image at a specific place ( vase on table) .but when i do that then the background gets resized but the vase image remains in the same place and same size when browser is resized as shown in second picture below.
see the vase in these two images
browser in full size
resized browser
how can i make the vase image also get resized just like the background
I recently ran into exactly the same issue creating a hidden object game which needed images placed on top of a background image to maintain their position regardless of browser dimensions.
Here's what I did:
You can include a template version of the background image as an actual <img> with visibility:hidden (so it's not visible but still takes up it's space in the DOM and base the size (and background image size) based on that.
HTML:
<div class="image-container">
<img src="http://www.w3.org/html/logo/downloads/HTML5_Logo_512.png" class="img-template">
<div class="item"></div>
</div>
CSS:
/* This is your container with the background image */
.image-container {
background:url('http://www.w3.org/html/logo/downloads/HTML5_Logo_512.png') no-repeat;
background-size:100%;
overflow-x: hidden;
position:relative;
}
/* This is the template that resizes the DIV based on background image size */
img.img-template {
visibility: hidden;
width:100%;
height:auto;
}
/* This is the item you want to place (plant pot) */
.item {
position: absolute;
left: 14.6%;
bottom: 80.3%;
width: 15%;
height: 15%;
background: yellow;
border: 2px solid black;
}
Here is a working example: http://jsfiddle.net/cfjbF/3/
Try making the image relative position and setting the alignment manually.
http://jsfiddle.net/cfjbF/1/
<head>
<style>
body {
background: #000000;
}
#image1 {
background: #008000;
position: relative;
left: 50px;
height: 50px;
width: 50px;
}
</style>
</head>
<body>
<div id="image1"></div>
</body>
Solution for your Problem:
https://stackoverflow.com/a/7660978/1256403
OR
http://buildinternet.com/2009/07/quick-tip-resizing-images-based-on-browser-window-size/
I have one image sheet like the one in this link (http://jquerytools.org/media/img/demo-navi.jpg).
I would like to get only a component of that image.
How can we get only component of image in CSS?
The correct terminology is CSS Sprite.
You can achieve this using background positioning:
div
{
background-image:url('http://jquerytools.org/media/img/demo-navi.jpg');
background-position:-20px 80px;
width:100px;
height:80px;
}
http://jsfiddle.net/Lz46r/
You can try this: http://www.guistuff.com/css/css_imagetech1.html
Cropping X and Y
That first image was kind of a softball. All the cool kids know how to take advantage of cropping an image in both axes. There are several reasons for doing this: You may have images of different sizes and want to place all of them within one file, for example. If you only crop on one axis, you'd be saving a file with the largest possible width or height of the array of images you want to use. Also, there are compression elements that you may want to take advantage of in the PNG file format, like keeping images with the same background color in the same horizontal row, and then having several rows.
Whatever the reason, there actually isn't much more to this than what we've seen so far. Here's another example image:
.icons
{
display: block;
width: 40px;
height: 40px;
background-image: url(images/sixicons.png);
background-repeat: no-repeat;
}
You can deduce from this class that the width and height of each icon is 40 pixels, and that the image file name is sixicons.png. I didn't create a very challanging example this time for X/Y cropping in the sense that all of the sub-images are of the same size. As you'll see, however, even if they weren't, you'd still be using a simimlar (though not exact) technique.
First, let's crop the top-left icon:
.icon_1 { background-position: 0px 0px; }
The markup would be:
<span class="icons icon_1"></span>
That was, of course, the easiest one. Now let's say we want the middle-bottom icon:
.icon_5 { background-position: -40px -40px; }
Let's see the CSS for all of the icons:
.icon_1 { background-position: 0px 0px; }
.icon_2 { background-position: -40px 0px; }
.icon_3 { background-position: -80px 0px; }
.icon_4 { background-position: 0px -40px; }
.icon_5 { background-position: -40px -40px; }
.icon_6 { background-position: -80px -40px; }
This should do what you need:
http://jsfiddle.net/8Eucw/1/
CSS:
#aBit {
background-image: url('http://www.google.co.uk/images/nav_logo107.png');
background-position-x: 114px;
background-position-y: 63px;
width: 18px;
height: 18px;
}
HTML:
<img src="http://www.google.co.uk/images/nav_logo107.png" /><br />
<hr />
<img id="aBit" />
You need to use CSS Sprites. There are some very simple tutorials here.
Hi there I am trying to make and image on top of another in 1 tag.
Basically I want an image to be the banner on top, so repeat-x
then under it I want the background image repeated multiple times
So something like this
body
{
background:url(banner.jpg); repeat: repeat-x;
background:url(background.jpg);
}
not 100% sure how to do it...I think that explains how I would like it.
I may also want something on the bottom added later so like after that background is done I would want something like background:url(footer.jpg) repeat: repeat-x; bottom
Im thinking this is what youre after.
http://jsfiddle.net/wpqDy/
html {
height: 100%;
width: 100%;
background: url("bg.jpg") repeat 0px 3px;
}
body {
background: url("bg_top.jpg") repeat-x top left;
height: 100%;
width: 100%;
}
You'll need to put background images on two different containers. Perhaps something like this:
<body>
<div id="page">
<div id="content">
...
</div>
</div>
</body>
#page
{
background:url(background.jpg);
}
#content
{
background:url(banner.jpg); repeat: repeat x;
}
CSS3 has support for multiple backgrounds on a single element; this is relatively widely supported, except for IE <= 8. You can write the following:
body
{
background-image: url(banner.jpg), url(background.jpg);
background-repeat: repeat-x, repeat;
}