Let's say we have requirement that icon image element need to present in HTML because we need to indicate icon existence for some screen readers and it's better to have them like IMG tag than I or plain DIV.
We have sprite.png and empty.png images. empty.png used for creating fake blank image (sprite image will be shown because it's background of our element).
In css we have class
.icon {
background:url('sprite.png') 0px 0px;
width:20px;
height:20px;
}
Then we use this in our HTML like this:
<img src="empty.png" class="icon" alt="Image from Sprite is Shown" />
Can we do it any other way, using our 'sprite.png' as image source with setting any mask/clip property on img with css?
Thanks in advance.
background-image does not take the 0px parameters you have after it. You may be mixing it up with background.
To show the correct portion of the sprite image, you use background-position to select the correct portion of the image.
Here is a simple tutorial page: http://www.tutorialrepublic.com/css-tutorial/css-sprites.php
I have the following Squarespace website. You can login to the site by clicking visitor access and typing in the code.
I'd like to change the background of the website by using the followng background image:
https://hethuisvandelingerie.squarespace.com/assets/bgs/bg8.png
I tried to do this with a CSS code to add a background image to the div with ID "canvas". This is the code I used:
#canvas{background-image: url('assets/bgs/bg8.png');}
However, this code does not seem to add the background image?
Any of you have an idea on how to solve this issue?
Take a look on your main wrapped on your #canvas div. Try to use the same CSS code. Hope it helps!
main {
background: url(https://static1.squarespace.com/static/ta/58639728d2b857b308f66598/404/assets/bgs/bg8.png)
}
In site.css, look for this entry and remove the background line from #main. You've applied the background image to #canvas but #main is displaying over #canvas and #main's background is covering the background image applied to #canvas
#main {
background: #fcfcfc;
...
Try removing the single quotes from the path
#canvas{background-image: url(assets/bgs/bg8.png);}
If that doesn't work
Make sure that you entered the right path.
Double check that the id of the element is in fact canvas
(I personally think it's a less than optimal name since canvas is now also a class)
I'm trying to recolor a simple SVG image with CSS (as I saw here http://codepen.io/chriscoyier/pen/evcBu ):
My HTML:
<img src="http://dl.dropbox.com/u/12091580/rwdicon/icon-menu.svg" class="myMenu" alt="menu">
My CSS:
.myMenu { fill: red; }
It's not working (see http://jsfiddle.net/sexyzane/1hojaccb/ )!
What am I doing wrong?
fill is used for svg element markup, you have an img element with an svg source, as such you cannot use fill to change the image color.
Instead, if you want to colorize the image, you may want to look into applying a CSS filter effect to the img tag, although this may not be able to achieve the exact result you're after.
Demo Fiddle
I implemented a simple tab navigation by using <ul><li><a> , the problem is that there are several "layers" on each tab still needed. what I mean is, In my current implementation I have:
-tab text which is <a>text</a>
-on each tab I have a tab icon image, which I put on <li> as background-image of <li>,
But I still need:
-tab seperator image (A vertical bar image) which I intend to put on <a>,and position it on the left side background-position: left , it is working but this implementation is not in my code which I showed below on jsfiddle site because I did not find a suitable image on internet
-tab background image which occupy the whole tab, I have no idea where I should put this image?
Please check & run my implementation here on jsfiddle, in the css code, I used background-color instead of background-image just to express what I want to achieve, but I need to use background-image as the tab background.
What I tried:
I tried to put the tab background image on <li> but it will hide the
icon image which has already on <li>,
I tried to put the tab background image on <a> but it will also hide the tab seperator image when mouse hover
How to get rid of this layer probelm on tab implementation then? (Please do not suggest me to use less image, since it is one requirement of this app to use those images.)
(By the way, all images I mentioned have mouse "hover" counterpart)
If you don't want to change the HTML, you can use pseudo-elements:
Fiddle: http://jsfiddle.net/Pq7LC/39/
li:before{
content: "";
background: pink;
width: 20px;
height: 61px;
display: block;
position:absolute;
}
li:first-child:before{ /* Don't add image border before first li */
content:none;
}
You can do it with css, no need of images.
http://jsfiddle.net/Pq7LC/40/
Hope it helped you :)
Is it possible to change the value of src attribute of <input type='image' alt="Text will be shown if pics are disabled" src='somepic.png'../> by css?
The problem is:
I want to specify which pic will be shown as submit button just using css (so the design team will change only css files!).
If I use the alternative way like <input type="submit" class="cssclass" value=" " alt="Text will be shown if pics are disabled"/> and specify the background of this element in css - it doesn't work well if pics are disabled. - No any alternative text is shown instead of pic. However the first way solves this situation...
Please advice something
Thanks.
Here it is: http://jsfiddle.net/kizu/66JXn/
Some notes about this solution:
Use <button></button>, 'cause it can include other blocks.
You'll need a bit of extra code to make all these work in Fx and IE:
For Fx you need an extra wrapper inside (there are positioning bug) and some extra -moz- properties reset.
For IE you must shrink the original button, 'cause there are some extra padding that is hard to remove.
You place the text and another element inside, that would overlay the text. So when the images would absent, the text would be accessible.
That's it :)
No, and this is bad practice. CSS is for static content only.
What you should do, is define a template file with variables in it such as:
template.js
my_backgroundImage = "url('somepic.png')";
then your file would load
x = document.createElement('image');
x.src = my_backgroundImage
Attribute selectors might work, but they aren't very flexible. Try this one:
img[src=""] {
background-image: url('none.png');
height: 100px; /* Height of BG image */
width: 100px; /* Width of BG image */
}
It doesn't change the image's src= attribute, but it performs the same function.
Here's my idea.
You can use JavaScript to read the stylesheets of <img> tags, and modify them accordingly.
I'm talking about a class whitelist, like big, small, center and all other classes applied to the images are interpreted via JavaScript. The design team could use CSS, but it would not render in the expected manor, like this (Python + JavaScript):
for every <img> tag:
if tag.classes contains class not in whitelist:
for every class not in whitelist:
this.src = newClass.backgroundImage;
this.removeClass(newClass)
It reads the CSS for the background-image property, but it just steals the URL of the image and sets the src= attribute using that URL. Then, the JavaScript would delete that class, causing it not to render.
(This is a problem for which JS is the solution, but ignoring that:)
One option is to wrap the button and an extra div (lets call it div.overlay) in a parent container.
Set the container to to position:relative.
Set the button to only display text, as usual. Set the div.overlay to position:absolute, width and height to 100%, and left and top to 0, and a z-index higher than the button. Set the image you want to display as the background-image of div.overlay.
With images enabled, the user sees the image, and the image can be changed using only CSS.
With images, or CSS disabled, the user only sees the plaintext submit button.
You might have to do some trickery to get clicking div.overlay to submit the form, perhaps just make div.overlay a duplicate submit button. Also, who knows what Googlebot makes of overlay techniques like these.
It's ugly, but the only pure CSS solution that immediately jumps to mind is a kind of image replacement with relatively poor support. That's using :after. It's kind of a poor practice due to the misuse of :after, and the support is pretty iffy, and I think it'd be iffier for an input element, based on the last time I tried to use :after on an input...
.cssclass,
.cssclass:after{
display:block;
width:100px;
height:100px;
}
.cssclass{ position:relative; }
.cssclass:after{
position:absolute;
top:0;left:0;
content:url("button.jpg");
}
See http://www.rachaelmoore.name/best-practices/css-image-replacement-ii/ for more.
Or setting the default src to a shim and always using CSS to set the desired button as a background image. Which I just noticed you've already thought of. I imagine that should work just fine.
Ok... So I hate it when I ask a specific question and, instead of answering it, they give me some crappy work-around instead of answering the original question that I asked... But for some reason, I've decided that I'm going to do it to you.
If I understand the problem correctly, you just want to have a form button with a background image and if the background image doesn't load, you want some sort of alt text displayed to the user with the caption of the button? If that's not right, stop reading and "down arrow" me.
In apps that I've made, I've always just styled the input with a background image, but left it up to the HTML control to insert text... It's good for three reasons... buttons can be styled, developers can change the value of the text on the button without having to bother me to make a new image, and if the background image doesn't load, the button is still readable.
So my html was like this:
<input type="submit" id="btnSearch" class="searchButton" value="Search">
then my class may read something like:
.searchButton {
backgorund-image: url('searchButtonImage.png');
font-family: sans serif;
font-size: 10px;
color: #808080;
padding-left: 50px 0px 0px 0px; // Assuming a magnifying glass icon or whatevs is on the left and is 20-ish pixels
width: 100px; // you can put this as in-line style if you make a more generic class
}
If you want to make the BG more generic, move the width of the button to make it in-line on the button, so the devs can change the width with the text value and make your generic bg image like 200px wide.
Depending on the browser, the text might not be as nice and ani-aliased as in others, but IMO, it's a small price to pay.
(Disclaimer: Please forgive me if you copy and paste this and it doen't work. I just hand-wrote it without testing it.)
Can you do it with javascript?
I have an image on my page that, when clicked, will show another button, and also change the src attribute of the first.
Here is what I use:
<script type="text/javascript">
function apps()
{
var element = document.getElementById("app_frame");
if (element.width != "0%")
{
parent.document.getElementById("frame").setAttribute("width","100%");
parent.document.getElementById("app_frame").setAttribute("width","0%");
parent.document.getElementById("appbutton").setAttribute("src","site/main/images/apps/show.gif");
parent.document.getElementById("wthrbutton").style.visibility="hidden";
}
else
{
parent.document.getElementById("frame").setAttribute("width","65%");
parent.document.getElementById("app_frame").setAttribute("width","35%");
parent.document.getElementById("appbutton").setAttribute("src","site/main/images/apps/hide.gif");
parent.document.getElementById("wthrbutton").style.visibility="visible";
}
}
</script>
What that says, is: set the "app_frame" as variable "element",
then check variable "element" for its width.
if its width is not 0, then it gets the element "frame",
by using getElementById, and then sets the attribute "width" to 100%
you can see slightly lower down that you use the same method, but use the SRC attribute rather than width, and set it to whatever you want, in my case, site/main/images/apps/show.gif
hope that helps