how to put svg image on one side 3d cube using css3? - html

I've created a cube and the last step is to put a picture on the "back" side. I can link a regular image and its working using following code:
.cube .back {
position: absolute;
width: 200px;
height: 200px;
background-image: url(pika.svg);
}
But, when I try to link my svg file as an img the whole image is not showing.
I have three separate layers in my svg but only two show. What am I doing wrong?
here's the svg code:
http://pastebin.com/H6tnHk0p

SVGs that are included as an image (eg. via <img> or background-image) cannot reference other external objects. That includes images, CSS etc. Your SVG references an external PNG file.
What you can do is include the PNG by embedding it as a base64 data URL.
This restriction is a deliberate browser security measure.

Related

Why can't I put background images using "background-image" property?

I am trying to put a background on a div using a method that I've been always using ever since. But for some reason, it isn't working. These are the things I tried:
Checked the syntax, its correct
Checked the path or typo, although I copied the path from the security tab in the properties of the image
Putting different elements inside, even though I already have sub divs inside.
I also tried this property to other divs and the body, still nothing.
I removed the bg image property and tried bg color instead, it worked.
CSS:
#menu-container{
width: 100%;
height: 800px;
margin-top: 760px;
background-image: url("C:\Users\aaron\Desktop\MODULES\WEB301\WEB301(HTML)\media files\bg.png");
}
You cannot load an image from C:\
However if you add file:/// to your path like file:///C:/Users/.....jpg this might work in some Browsers (not all). Otherwise you will have to use relative paths. This means you reference the JPG in relevance to where the HTML or CSS file is sitting.
Read this for more details about relative pathing.

How to use a single image file to display images/icons in a website

I have noticed that websites only using a single image png file to hold all the icons and images that website uses. But when you inspect a specific image, you don't see the others.
For example google.com images file as example:
How is this image cut and spliced into individual images that are available to that webpage?
The image is divided into "sprites".
There is an example here http://www.spritecow.com/.
Code goes like this:
.sprite {
background: url('imgs/example.png') no-repeat -433px -51px;
width: 33px;
height: 33px;
}

SVG object change color from external CSS

I am playing around with SVGs (trying to replace icon fonts with SVG.) I got it to render the image/svg using object tag. However, I can't get it to change color from CSS. Assuming, I prefer coloring it from CSS, is there a way to do that while I use to embed SVG.
<object class="partnerLogo" type="image/svg+xml" data="assets/logos/sample.svg">
Your browser does not support SVG
</object>
CSS, I tried so far:
.partnerLogo {
width: 100%;
height: 100px;
color: red;
color-fill: red;
}
In sample.svg file, I added, <?xml-stylesheet type="text/css" href="../css/styles.css"?> just before
styles.css is being added to the page.
Thanks!
It isn't possible to directly modify the fill if you're using the SVG using the <object> method. The SVG is included as a document fragment inside the object tag, so your properties aren't passed as you can see in this image.
However, there are two ways you can modify the colors of an external SVG.
1) Use Javascript (recommended)
Using Javascript you can fetch the SVG contents via an XHR, and then inject it as inline SVG. As it's inline SVG technically, you can modify the fill color. There's a library I have written (svg-loader) that make it really easy to do this.
You just need to include the library and use data-src attributes to load SVGs.
Example:
Here, I have included a logo in three different formats, modifying the fill color.
<script type="text/javascript" src="https://unpkg.com/external-svg-loader#latest/svg-loader.min.js" async></script>
<div style="display:flex;">
<div style="background:black;">
<svg data-src="https://s2.svgbox.net/assets/logo-white.svg" fill="yellow"></svg>
</div>
<div style="background:purple;">
<svg data-src="https://s2.svgbox.net/assets/logo-white.svg" fill="white"></svg>
</div>
<div style="background:green;">
<svg data-src="https://s2.svgbox.net/assets/logo-white.svg" fill="red"></svg>
</div>
</div>
2) Use filter CSS property
You can use the filter CSS property to reach any color using bunch of operations (brightness, contrast, hue-rotate..). There an existing stack overflow discussion on this.
Example:
.red {
filter: invert(20%) sepia(97%) saturate(4013%) hue-rotate(353deg) brightness(93%) contrast(127%);
}
<img src="https://s2.svgbox.net/assets/logo-white.svg" class="red" />
The big drawback here is that you'd need to calculate this for every color (using this) and doesn't make it obvious how it works. Also, it won't work well with SVGs having multiple colors.
As far as I know, color in SVG-CSS should be stroke for borders and fill for backgrounds:
.partnerLogo {
width: 100%;
height: 100px;
stroke: red;
fill: red;
}
You can't use external CSS classes to style a SVG called within an < object > element, despite a lot of blog posts in the subject says you can interact with, buit this is misleading for this particular case. You must add the formattings inline, inside the actual SVG.
If you need to access and alter the actual objects and paths of an SVG from your main css file, you must embedd it inline, using the < svg > tag.
Here's a post that covers it all:
https://vecta.io/blog/best-way-to-embed-svg
I know this is an old question now - but this is for any future readers who want to colour their SVGs with pure CSS rather than have to use JS. I find this method quite convenient compared to other methods - and you can even colour your SVGs with a gradient etc.!
I simply make a div which will contain my SVG and give it a class.
HTML:
<div class="colourful-svg"></div>
Then the colour is done using masks and background colour in your CSS.
CSS:
.colourful-svg {
mask-image: url("path/to/your/svg-file.svg");
background: green;
// Make sure you define dimensions for your div otherwise it won't show up
height: 500px;
width: 500px;
mask-size: contain;
mask-position: center;
mask-repeat: no-repeat;
}
This will make your SVG fill the div you had made and therefore be the size you need it to. It then uses a mask to essentially only show your background colour through the SVG you have linked to using the url() function.
Masks now have pretty good support with prefixes (about 94% globally from caniuse.com at the time of writing), so I think this is quite a simple and easy way to implement colour SVGs - I hope someone finds this useful!

SVG still receives clicks, even if pointer-events: visible/painted

Basically, I have a couple .svg images put into an <img> tag on my HTML page like that:
<img src="images/corner.svg" alt="menu" class="menu" onClick="Fade();"/>
All of those images are overlapping with each other. They have the same size but different content.
I'm now trying to make only the content of those images clickable.
With pointer-events: visible; or pointer-events: painted; in CSS that seemed to be possible, but i can't get it work like that. The image still receives clicks at every point in it and not only on the content part.
I tried pointer-events: none; on the top image and that disabled clicks on the top image, which sounded like there was no mistake in the HTML or CSS code.
I created those .svg images in Illustrator CC with a transparent background, so normally there can't be content, and I exported it with the following options:
(sorry for this being in german)
I have no idea where the problem could be.
I've had success inlining the SVG, setting the pointer-events to none for the SVG elements, and then setting the pointer-events for the path element within the SVG to fill. Here's a CodePen example.
svg {
cursor: pointer;
pointer-events: none;
}
path {
pointer-events: fill;
}
The problem is that you're using an <img> tag. They work like rasters even when the data is SVG i.e. the individual items don't really exist, it's just a picture which you can either have as entirey clickable or not.
If you want the drawing to be interactive you'll need to use an <object> or <iframe> tag and then you can make the individual shapes clickable or not by using the pointer-events attribute.
You could also include all the svg data inline in the html file but if you did that you'd need to make sure all the id attributes were unique.
This is what worked for me
svg {
pointer-events:none;
}
svg *{
pointer-events:auto;
}
don't hesitate to add !important in case it has conflict with your current style.

How to handle PNG image loading time in html, css

When I have an <a> tag set to a specific image background like this:
HTML:
Click Here
CSS:
a {
background: transparent url(button.png);
}
and I want the background to change whenever a user hovers over the spot, like this:
CSS:
a {
background: transparent url(button_HOVER.png);
}
The hover background image flickers (takes about 1-2 seconds until it fully loads) when a user hovers over the link.
I could save the file as GIF and minify its size and loading time, but that would harm my specific image tremendously (it's big and highly graphical).
That's why I was looking for a better solution, such as perhaps counting on the browsers ability to cache images. Hence would I apply a style to a button like this:
CSS:
a {
background: transparent url(button_HOVER.png);
background: transparent url(button.png);
}
So that the image button_HOVER is first cached. It has seemingly affected the "flickering", but not completely. I thought of maybe creating a hidden tag with the HOVER image, so that maybe the result would be different.
Do you think there's a better way to solve it? (I emphasize I want to keep the file as PNG, it weighs 6-7k). Is my method efficient?
Your solution would be to put both images (hover and active) in the same image file. Positioned on top of each other. Also known as Image Sprites. The browser will load the entire image file. On hover, you just change the background position.
Assuming the active image is at the top, and the hover image is positioned directly below that..your css code would be something like:
a.link {
width:70px;
height:24px;
background: url(image.png) top no-repeat;
}
a.link:hover {
background-position: bottom;
}
Notice background-position. Here I use top and bottom. You can specific exactly in pixels too. The entire image in this example would have a width of 70pixels and height of 48pixels. Some sites put all their small icons into one image. Loads altogether, save on requests too. :)
No need for preload scripts in this case.
The basic options available are to use an html element that's hidden from the viewer, or use javascript.
The html approach is probably the simplest, though:
<div id="preloadedImageContainer">
<img src="img/to/preload_1.png" />
<img src="img/to/preload_2.png" />
</div>
with the css:
#preloadedImageContainer {position: absolute; top: -1000px; left: -1000px; }
or, with javascript:
(function($) {
var cache = [];
// Arguments are image paths relative to the current page.
$.preLoadImages = function() {
var args_len = arguments.length;
for (var i = args_len; i--;) {
var cacheImage = document.createElement('img');
cacheImage.src = arguments[i];
cache.push(cacheImage);
}
}
})(jQuery)
the jQuery approach was lifted in its entirety from this page: http://engineeredweb.com/blog/09/12/preloading-images-jquery-and-javascript.
Though the best approach would probably be, as Lyon suggests, css image sprites.
You should search about this topic "preload images" You will find ways to preload images using css and javascript.
I believe that if you put a hidden image with source equal the src of png images you will use in the css files, this will make the images loaded when the page loads, and CSS work will be just switch preloaded images.