I am the absolute beginner in this subject.
When I have some object in GIMP and his background is transparent, may I automatically crop the object to minimal size/resolution?
I do this manually, that means I select the object, but this is not exact.
It is still a little different, but this unsatisfying me, because when I have this image with object on my website (example dog with transparent background, 150x150) and I have other image on my website (example cat with transparent background, 155x155) and I set some attributes him, but in one .class, because do setting #id each image is impossible.
See Layer>Autocrop layer and Image>Autocrop image.
Note that in both cases, Gimp removes lines of strictly identical pixels, and this includes their opacity. So if you have even one single pixel which is faintly opaque, the auto-cropping will stop on it. In particular, non-rectangular shapes with a smooth contour have edges made of partially opaque pixels, so you may mistakenly think that the autocrop has missed out some space. This won't be the case.
In GIMP 2.10.30 you do
Image -> Crop to content.
Related
I have an SVG file which I display white normally, or red when the user hovers over it. This is made by having transparent areas of the image and using the following CSS & HTML:
a>img{background:#fff;width:32px;height:32px}
a:hover>img{background:#900}
<img src="blah.svg">
The problem is that I sporadically get very thin borders of white (or red) around the image. Different browsers/zoom levels/devices show different borders - sometimes none, sometimes some, sometimes all of them.
This would appear to suggest that the SVG file isn't quite "filling" the img tag.
I might assume that the problem is that the SVG isn't quite square, so it's not stretching perfectly to 32x32 pixels, but sometimes I get borders on all four sides, so it can't be that simple. (And indeed the SVG file has a viewbox of "0 0 195 195" and doesn't appear to have any points outside of that range.
It's worth noting that changing the dimensions to 39x39 pixels (a perfect divisor of 195) doesn't fix the issue, not that I expected it to, due to the vector nature of SVG.
Fiddle: http://jsfiddle.net/3wtazst8/1/
Any suggestions?
Thanks
I know this is over a year old, but I was having the same issue and considered Paul LeBeau's advice regarding extending outside the viewBox. Below is an example showing the issue and the fix.
Icons with background colors showing issue and showing fix
The badge icon does not show the bleed, while the medal icon does.
Side-by-side image of icons within viewBox and extended beyond viewBox
Viewing the left SVG in Illustrator, the background of the image goes to the very edge of the viewBox.
Viewing the right SVG in Illustrator, the background of the image extends beyond the edge of the viewBox.
Fixing your SVG so the background extends beyond viewBox will fix your issue.
I want to set a prefereble image as the background for my website.
Now, an image file always comes with a fixed pixel or size. Lets say that my chosen image is 960x960 px.
But my web page may have different size, may be the size is 3 times bigger than the image.
If I set that image as background, then normally it will repeat (I know how to stop it, but that's not what I want). When it gets repeated, it will make a stripe or a shadow type line at that point where they join with each other. That means, at the image joining point, it makes a separate border (I hope you know what I mean) what looks bad and an user doesn't like it.
How to avoid that?
How can I set a background image as only a single image so that it's not clearly visible that many images are joint on the background.
As an example this is my background image:
background-image:url(img/backgr.gif);
Two possibilities:
Use a graphic program to edit your image so it becomes seamless. Look here: http://www.youtube.com/watch?v=NARVupW2ads
Use background-size:cover; to enlarge the background image so it automatically covers the whole screen.
After the background-image line have this line:
background-repeat: no-repeat;
Is it possible in HTML5, CSS3 and (most likely) SVG to create a shadow like the blue precent icon throws?
For example, a site content admin picks a picture for the icon (it can be a PNG with transparent border), and the markup with the rules give it a shadow like on the picture. The ideal variant would be a dynamic shadow that changes if we rotate or scale the icon.
You can get this effect by making several box/text shadows farther and farther away. Realistically, this would be very hard to code yourself, so you should probably use mixins or javascript. See this example: http://codepen.io/awesomephant/pen/mAxHz
I have a question, since I couldn't find any solution yet.
So I have this image, which is fully transparent in the "center" and partially on the border as you can see. What I'd like to achieve is, the "border" should be transparent and the "center" should be red.But the border should be fully transparent. So in this case, white.
I'm not sure if is this even possible with CSS or HTML, the reason why I need to do this in CSS or HTML because I'm looping through the database, and every displayed record would have a different background color, but the "border" should remain transparent. So creating the whole image in 10 colors or more is not an option for me, because then the site might would be too heavy.
Thank you very much guys,
Mark
EDIT:
http://i.imgur.com/yMRxtqY.png
So to be more precise, I've created another image, what I want to achieve.
At the start I got the 2 images on the left side, the first one on the top is fully transparent in the middle, and has ~50% opacity on the border as you can see, so partially transparent. The second one is just an image, but the second image is always changing, like a slideshow.
The other image to the right would be the final result, I've set a gray background to be more visible. So what I have in my mind, is that possible? What I want to achieve is to cut the slideshow images border like this. But I don't want to photoshop every image which is in the slideshow, so I was thinking, maybe I can achieve something similar like this with CSS. I'm thinking in some z-index, or something. But thats not working, because I get an image like what I've linked on the top.
This is all I got: http://i.imgur.com/g7xpgQG.png
My problem here is, I can see the image on the partially transparent border, I'd like to get something similar what is on the first image on the right (without the blue things of course, I couldn't cut it, I'm not a designer :P )
Not sure if this is what you're looking for, but take a lok at this link : http://css-tricks.com/transparency-in-web-design/
You might have to take a look at the PNG file format you're using.
On an HTML page, you can make text flow around images with the CSS property "float". But this will only consider the image's rectangle, not transparent regions in the image. I now have an image that has large areas of full transparency, like for example a circular logo, and would like the text to flow around the circle contour of that logo, not the bounding rectangle. At least on the text-facing side of the image.
I know that CSS is probably not suitable for that task. But is there some workaround, like hidden divs or something that can achieve the same (or a similar) effect? Has somebody already seen such a thing?
I have written a PHP function for that now. It takes the PNG image and generates the <div> elements to make the text flow around another form than the image's rectangle. You can find the code here:
https://unclassified.software/source/shaped-image-flow
Update 2020/2021:
Now there is a CSS property for that: shape-outside. It can be given an image with transparency that will determine the outside shape to let the text flow around. If the visible image is already a PNG, the same image can be used for this CSS property. Additional margin can be added with shape-margin. Both are supported by anything except IE.
Example:
<img src="img/shape.png" style="shape-outside: url(img/shape.png); shape-margin: 1.5em;">
I really doubt you can do that easily without making a big mess, of tags, JavaScript or both. One way i can think is placing image on larger zindex and positioning div or divs behind it, and text would flow around them. It would be easiest to use smaller rectangle that excludes transparent areas. But then why not just crop/clip the image? Or you can try floating line height divs behind it, but I guess that it will get quite ugly pretty fast. Or you could try placing each line of text in span/div and positioning them manually or with js by calculating approximate shapes to those that are in the image. One other idea, of which I'm not sure: it might be possible do this using svg. But quick search does not show much promise ether.
Any way one more thing to consider, when doing something as experimental and complicated as this, in whatever way you do this, it will most likely be huge pain to make it work well across most browsers.
There is a css property that do just what you want
shape-outside include values of shapes you can use.
https://www.geeksforgeeks.org/how-to-wrap-the-text-around-an-image-using-html-and-css/