background image position fixed to parent element - css

I have a div somewhere on the page and I need to give it a background image that does not move when you scroll your browser window. This is my code so far:
#mydiv {
float:left;
width:540px;
margin:40px 0px 0px 20px;
background:url(/images/myimage.jpg) no-repeat fixed 0px 0px transparent;
}
The problem is that my background image is positioned relative to canvas and I need it to be positioned relative to #mydiv and still not scroll.
To illustrate the problem please see here http://jsfiddle.net/QPrUz/1/
In the example #div1 looks fine but #div2 does not show the background at all as it is positioned relative to the canvas instead of #div2.
Any suggestions are welcome.
P.S.
iframe is not an option.

As per Jawad's comment it's not possible using CSS. I ended up changing a background to something repeatable.

MDN for fixed says:
This keyword means that the background is fixed with regard to the viewport.
Use scroll instead of fixed:
This keyword means that the background is fixed with regard to the element itself and does not scroll with its contents. (It is effectively attached to the element's border.)
So, the full code for sticky background fixed relative to the element itself:
.sticky-background {
background: url(...) no-repeat scroll;
}

If I understood the question, you just have to position the top/left of the background image so that div2 looks like div1.
here it is: http://jsfiddle.net/7kku4v1t/
I only changed:
background:url(http://i35.tinypic.com/4tlkci.jpg) fixed no-repeat;
to
background:url(http://i35.tinypic.com/4tlkci.jpg) 210px 0 fixed no-repeat;
^^^^^^^
X Y

Related

How can I center a CSS background image as if the image had a different width (without cutting the bgimg off)?

I'm attempting to add a bookmarklet to my wop website. The issue is that I would like to have the bookmarklet (highlighted in red in the picture below) centered as if it did not have the arrow sticking out the side. If I change the width of the bgimage in the css, to be the same as the below indented box thingies, it centers how I would like it to. But, it cuts off a bit of the arrow. So, my question is, how can I center the bookmarklet as if it had the width of the other indented box thingies.
bookmarklet CSS:
#bookmarklet {
background-image:url('images/bookmarklet.png');
width:425px;
height:175px;
background-repeat: no-repeat;
margin-left: auto;
margin-right: auto;
padding-bottom:8px;
}
I want the bookmarklet to be centered as if it were(without cutting out the side of the arrow):
#resultbg {
background-image:url('images/resultbg.png');
width:404px;
height:347px;
background-repeat: no-repeat;
margin-left: auto;
margin-right: auto;
padding-top:8px;
}
Any help is greatly appreciated!
Thank you(:
measure the amount of pixels the arrow 'sticks out' from the box, divide it by two and make it your left margin
That's the first thing that came into my mind. However, you are using the left margin to center the image in the first place. Maybe have a container div, center this div with margin-left: auto and margin-right: auto, and then play with the margins of the image inside this div. That should work
Just add
background-position:center;
To the background which should be centered
A few options:
Reduce the width of the image and pad the side with some blank space that way it wont get cut off.
Wrap the image in a div and set the width so the backgroung image is positioned as needed using some padding or margins.

Floating element dissapears behind background when container has position:relative

I have boiled down my problem to a pretty simple single file with the CSS included in a <style> tag.
The problem is:
I have a floating right column with a transparent background to show some text and pictures. This works fine, as expected.
Now I want to position a "Site designed by.... " block just above the footer.
I want to use an absolute positioned div for this, which is positioned relative to the containing #content div, which must get the position:relative property to achieve this.
When I set this property, the floating right column disappears, and seems to be hidden behind the background image of the #content block.
I cannot find an explanation for this. A workaround would be to position it relative to the footer (in that case the #footer div would get the position:relative property).
But I just would like to understand what goes wrong here and why the floating column is hidden. See the links for the layouts without and with the relative positioned content div.
Understandably, in the case of no relative positioning, the text is positioned relative to the browser in the bottom left corner.
http://websites.drsklaus.nl/relativeproblem/index_withoutrelative.html
http://websites.drsklaus.nl/relativeproblem/index_withrelative.html
You were almost there! Heres a little help to finish it.
#main {
width: 1005px;
margin: 20px auto; /* shorthand margin for x and y axis */
border: solid black 1px;
/* Added background to main instead so it still covers the full background */
background-image: url('grey-repeating-background-4.jpg');
}
#content {
position: relative;
min-height: 500px;
/* made the padding here margin, made it slightly bigger to accomedate the right column */
margin: 5px 370px 5px 5px; /* Margin right should be as wide as the right column+extra space */
}
The reason for your right column to hide behind the content is that before you put position:relative; on it it is in normal flow, not 'positioned' and so z-index priority is really just by DOM order. Positioning it just made it a whole lot more important; obscuring the right column.

CSS - Can I resize the background image by changing the width and height?

Given the following CSS rule,
#block1 {
text-indent: -1000em;
background: transparent url(../images/xxx.png) no-repeat scroll center center;
width: 100px;
height: 50px;
display: inline-block;
}
Assume the image xxx.png is of dimension 100px by 50px. If I need to make this image displayed on #block1 looks smaller, can I simply change the width and height of #block1 or I have to first re-size the image and then change the width and height of the #block1 accordingly.
thank you
You can't in CSS1 and 2, but CSS3 supports the background-size property, which if you set to 100% should give you what you are looking for.
However, you probably should just resize the background image though, unless you have a compelling reason not to :)
CSS can only position the image, not adjust it. If you absolutely needed to resize the image through CSS, you'd have to have the image actually inserted as an img tag, then position it behind the content. It's best just to edit it.
no, the image will just appear to be cropped.

CSS - How to control the gap between background image and container

Is it possible that I can create a margin/padding between the background image and container that holds the image? In other words, I need to move the background image sprite_global_v3.png 20px to the right of the left border of #nav-primary.
Here the position "0 -470px" are used to pick the right picture from sprite. And I don't know how to apply a padding/margin of 20px in order to achieve what I expected.
#nav-primary {
background:url("http://static02.linkedin.com/scds/common/u/img/sprite/sprite_global_v3.png") no-repeat scroll 0 -470px transparent;
}
<div id="nav-primary">
<span>Hello World</span>
</div>
Based on http://www.w3schools.com/css/css_background.asp
body
{
background-image:url('img_tree.png');
background-repeat:no-repeat;
background-position:right top;
}
If I understood correctly, the background-position is used to control the alignment of the background image. Now I need to control alignment and choose the right picture from a sprite. I don't know whether or not I can mix it together.
Thank you
No, there is no concept of padding/margin for background images.
Options:
1) Positioning the background (as already stated). The key is that the container would have to have fixed dimensions.
2) Nest a container inside a parent container. Parent gets the padding, child gets the background image.
Given that you are trying to do this with a sprite, both are likely options since a sprite has to have a fixed sized container anyways. For option 1, you'd need to make sure your sprite images have enough white space between each other in the file.
No, you can't mix them together.
You can place an image at an offset from the corner:
background-image: url('img_tree.png');
background-repeat: no-repeat;
background-position: 20px 20px;
But you can't combine this with the sprite techinque. This technique uses the fact that the element is smaller than the background image to clip the image, but you can't clip the background image 20 pixels into the element.
You can specify the exact position of the background to the pixel.
If you wanted a 10-pixel gap on the left-hand side, for example:
#nav-primary {
background:url("http://static02.linkedin.com/scds/common/u/img/sprite/sprite_global_v3.png") no-repeat scroll transparent;
background-position:10px 0px;
}
That being said, it looks like you already specified it to be set at (0, -470). Does that not work?
The background-position property allows for percentages and values, e.g. "20px 0", which I think is what you're looking for.

Position a CSS background image x pixels from the right?

I think the answer is no, but can you position a background image with CSS, so that it is a fixed amount of pixels away from the right?
If I set background-position values of x and y, it seems those only give fixed pixel adjustments from the left and top respectively.
background-position: right 30px center;
It works in most browsers. See: http://caniuse.com/#feat=css-background-offsets for full list.
More information: http://www.w3.org/TR/css3-background/#the-background-position
It is possible to use attribute border as length from the right
background: url('/img.png') no-repeat right center;
border-right: 10px solid transparent;
There is one way but it's not supported on every browser (see coverage here)
element {
background-position : calc(100% - 10px) 0;
}
It works in every modern browser, but it is possible that IE9 is crashing. Also no coverage for =< IE8.
As far as I know, the CSS specification does not provide for exactly what you're asking, outside of CSS expressions, of course. Working off the assumption that you don't want to use expressions or Javascript, I see three hackish solutions:
Make sure your background image matches the size of the container (at least in width) and set background-repeat: repeat or repeat-x if only the width is equalized. Then, having something appear x pixels from the right is as simple as background-position: -5px 0px.
Using percentages for background-position exhibits special behaviour that is better seen than described here. Give it a shot. Essentially, background-position: 90% 50% will make the right edge of the background image line up 10% away from the right edge of the container.
Create a div containing the image. Explicitly set the position of the containing element position: relative if not already set. Set the image container to position: absolute; right: 10px; top: 10px;, obviously adjusting the final two as you see fit. Place the image div container into the containing element.
Try this:
#myelement {
background-position: 100% 50%;
margin-right: 5px;
}
Note though that the code above will move the whole element (not the background image only) 5px from the right. This might be ok for your case.
You can do it in CSS3:
background-position: right 20px bottom 20px;
It works in Firefox, Chrome, IE9+
Source: MDN
Image workaround with transparent pixels on the right to serve as right margin.
The image workaround for the same is to create a PNG or GIF image (image file formats that support transparency) which has a transparent portion on the right of the image exactly equal to the number of pixels that you want to give a right margin of (eg: 5px, 10px, etc.)
This works well consistently across fixed widths as well as widths in percentages.
Practically a good solution for accordion headers having a plus/minus or up/down arrow image on the header's right!
Downside: Unfortunately, you cannot use JPG unless the background portion of the container and the background color of the CSS background image are of the same flat color (with out a gradient/vignette), mostly white/black etc.
If you happen to stumble on this topic in these days of modern browsers you can use pseudo-class :after to do practicaly anything with the background.
.container:after{
content:"";
position:absolute;
right:20px;
background:url(http://lorempixel.com/400/200) no-repeat right bottom;
}
this css will put background to bottom right corner of ".container" element with 20px space on the right side.
See this fiddle for example http://jsfiddle.net/h6K9z/226/
The most appropriate answer is the new four-value syntax for background-position, but until all browsers support it your best approach is a combination of earlier responses in the following order:
background: url(image.png) no-repeat 97% center; /* default, Android, Sf < 6 */
background-position: -webkit-calc(100% - 10px) center; /* Sf 6 */
background-position: right 10px center; /* Cr 25+, FF 13+, IE 9+, Op 10.5+ */
If you want to specify only the x-axis, you can do the following:
background-position-x: right 100px;
Just put the pixel padding into the image - add 10px or whatever to the canvas size of the image in photohop and align it right in CSS.
I was trying to do a similar task to get a dropdown arrow always on the right side of the table header and came up with this which seemed to work in Chrome and Firefox, but safari was telling me it was an invalid property.
background: url(http://goo.gl/P93P5Q) center right 10px no-repeat;
After doing a bit of messing around in the inspector, I came up with this cross-browser solution that works in IE8+, Chrome, Firefox, and Safari, as well as responsive designs.
background: url(http://goo.gl/P93P5Q) no-repeat 95% center;
Here is a codepen of how it looks and works. Codepen is written with SCSS - http://cdpn.io/xqGbk
You can position your background image in an editor to be x pixels from the right side.
background: url(images_url) no-repeat right top;
The background image will be positioned in top right, but will appear to be x pixels from the right.
Works for all real browsers (and for IE9+):
background-position: right 10px top 10px;
I use it to RTL WordPress themes.
See example: temporary website or the real website will be up soon.
Look at the icons at the big DIVs right corners.
Another solution I haven't seen mentioned is to use pseudo elements and I do believe this solution will work with any CSS 2.1 compliant browser (≥ IE8,≥ Safari 2, ...) and it should also be responsive :
element::after
{
content:' ';
position:relative;
display:block;
width:100%;
height:100%;
bottom:0;
right:-5px; /* 10 px from the right of element inner-margin (padding) see example */
background:url() right center no-repeat;
}
Example: The element eg. a square sized 100px (without considering borders) has a 10px padding and a background image should be shown inside the right padding. This means the pseudo-element is a 80px sized square. We want to stick it to the right border of the element with right:-10px;. If we'd like to have the background-image 5px away from the right border we need to stick the pseudo-element 5px away from the right border of the element with right:-5px;...
Test it for your self here : http://jsfiddle.net/yHucT/
If the container has a fixed height:
Tweek the percentages (background-position) until it fits correctly.
If the container has a dynamic height:
If you want a padding between your background and your container (such as when custom styling inputs, selects), add your padding to your image and set the background position to right or bottom.
I stumbled on this question while I was trying to get the background for a select box to fit say 5 px from the right of my select. In my case, my background is an arrow down that would replace the basic drop down icon. In my case, the padding will always remain the same (5-10 pixels from the right) for the background, so it's an easy modification to bring to the actual background image (making its dimensions 5-10 pixels wider on the right side.
Hope this helps!
Tweaking percentages from the left is a little brittle for my liking. When I need something like this I tend to add my container styling to a wrapper element and then apply the background on the inner element with background-position: right bottom
<style>
.wrapper {
background-color: #333;
border: solid 3px #222;
padding: 20px;
}
.bg-img {
background-image: url(path/to/img.png);
background-position: right bottom;
background-repeat: no-repeat;
}
.content-breakout {
margin: -20px
}
</style>
<div class="wrapper">
<div class="bg-img">
<div class="content-breakout"></div>
</div>
</div>
The .content-breakout class is optional and will allow your content to eat into the padding if required (negative margin values should match the corresponding values in the wrapper padding). It's a little verbose, but works reliably without having to be concerned about the relative positioning of the image compared to its width and height.
Its been loong since this question has been asked, but I just ran into this problem and I got it by doing :
background-position:95% 50%;
Solution for negative values. Adjust the padding-right to move the image.
<div style='overflow:hidden;'>
<div style='width:100% background:url(images.jpg) top right; padding-right:50px;'>
</div>
</div>
Better for all
background: url('../images/bg-menu-dropdown-top.png') left 20px top no-repeat !important;
This works in Chrome 27, i don't know if it's valid or not or what other browswers do with it. I was surprised about this.
background: url(../img/icon_file_upload.png) top+3px right+10px no-repeat;

Resources