Transparent background for png image with CSS - html

I wonder is it possible to make transparent background for only 1 color of a png image.
For exemple if my image contains 2 colors red and blue, I wanna make transparent (or change opacity) only the red color.

No, you will need to use a img editor like adobe illustrator.
CSS will not do it for you.

Related

CSS - Background image

I am not sure how to change the background of an image tag in css. For example, I have a darker background in my webpage. Let's say I include an image of a purple X with a white background. How would I change the background of that purple X image to be the same color as my body.
You could add mix-blend-mode: multiply; to your <img>'s css. It will render the white 'transparent' but it'll also alter the other colors in the image.
Best solution would probably be to use transparent PNGs.

How to change the transparent background color of an image in css?

Shrimp image with transparent background
So I have an image of a shrimp with a transparent background. Meaning that when i render it it supposed to only show the shrimp and not the transparent background. I'm trying to render it in a webpage using html and css. How can I render the image in my webpage and making sure that the transparent background doesn't show it becomes transparent and shows whatever is behind the image other than the shrimp itself.
Thanks!
the background in your image is NOT transparent, it's just look like...
Your image is a PNG file but it does not have a transparent background. Try to use photoshop to remove the background. :)

How to change just one color of jpg

How can I change the white color to the red, but only white should be changed, the rest should be what they are.
Using only CSS
CSS can't be used to dynamically edit certain pixels of an image, as far as I know.
Alternative solutions:
You could overlay another element over top of the image with a partially transparent red background to sort of "paint" the image red, but this wouldn't achieve exactly what you're asking for.
You could have another image to switch it to that has the red background. You'd switch the image likely by doing something like background-image: url(https://new_image_here)
You can use JavaScript or similar to modify the image or provide a fancier solution...

HTML PNG image transparent

I'm trying to put a png image in the body of my html. The challenge is that my background is grey (for now, but could change) and the png background that is supposed to be transparent is white. How do I tell html to see the image as a png and not a regular image? Can I set it to transparent or do I have to specify a background color (transparent would be ideal if I change my background)?
My code is currently
<img src="{% static 'livestream/images/streamON.png' %}" alt="on" width="300" height="300">
Transparency is not done in HTML, but is a part of the image itself. The browser will see the image as a PNG and display it as a PNG automatically. To add transparency to the image, you will have to edit the file with a graphics editor like Photoshop.
HTML will get the image transparency if there is already.
You can use this to remove the background color without any image tool.
If your image already has a transparent background, but it's inside a button, then that could be the problem. The button's color may be different than your background's color
Use Photoshop, Fireworks (or any other image editing software) to remove the background of the PNG. When saving, you should mark it as having "transparency".
This question has nothing to do with HTML though.
you need to use transparent image. which can be created by using photoshop or any other image editing software
http://i.stack.imgur.com/sCNJW.png
or you can use css transparency as shown in below link
http://css-tricks.com/css-transparency-settings-for-all-broswers/

Partial image opacity in HTML / CSS

I want to know if it is possible to affect the opacity of only a certain color in an Image?
For example, I have a PNG image file that has a simple drawing on it (smiley face) and I set the backdrop to the color 'white' only. I want to use the image on a web page, but I want only the smiley face shown (no white backdrop).
Is there a way to do this?
Not in HTML or CSS but what you should do is open the image in a picture editor that supports PNG transparency and set your image background to transparent (or opacity = 0) instead of white.
Not with CSS. The best way to handle this would be to give your smiley face image a transparent background. That way, you could put a colored element behind it whenever you want to change its color.