Posted in css
7846
5:16 am, December 22, 2020
 

make an image white with css using filter brightness and invert

If you have an icon or something with transparency this can be useful if you dont want to have to edit the image and create another copy of it you can apply the filter brightness and invert.

You can see it uses the same image source to get this effect. This only really works with images that have transparency, otherwise it just makes the whole image white as there is nothing to invert. 

Also added some transitions to this to make the changes a bit smoother.

HTML

<h2>Normal Image</h2>
<p class="image-bg"><img src="https://img.icons8.com/color/2x/share-rounded.png" class="normal-image"></p>
<h2>Inverted Image</h2>
<p class="image-bg"><img src="https://img.icons8.com/color/2x/share-rounded.png" class="inverted-image"></p>
<h2>Normal into Inverted when active</h2>
<p>Mouse over it to see the change</p>
<p class="image-bg"><img src="https://img.icons8.com/color/2x/share-rounded.png" class="normal-image-to-inverted"></p>

CSS

.image-bg {
 background:#444;
}
.inverted-image {
 filter: brightness(0) invert(1);
}
.normal-image {}
.normal-image-to-inverted {
 transition: all 0.3s;
}
.normal-image-to-inverted:hover {
 filter: brightness(0) invert(1);
 transition: all 0.3s;
}

Normal Image

Inverted Image

Normal into Inverted when active

Mouse over it to see the change

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"Olivia, my eldest daughter, caught measles when she was seven years old. As the illness took its usual course I can remember reading to her often in bed and not feeling particularly alarmed about it. Then one morning, when she was well on the road to recovery, I was sitting on her bed showing her how to fashion little animals out of coloured pipe-cleaners, and when it came to her turn to make one herself, I noticed that her fingers and her mind were not working together and she couldn’t do anything. 'Are you feeling all right?' I asked her. 'I feel all sleepy,' she said. In an hour, she was unconscious. In twelve hours she was dead. The measles had turned into a terrible thing called measles encephalitis and there was nothing the doctors could do to save her. That was...in 1962, but even now, if a child with measles happens to develop the same deadly reaction from measles as Olivia did, there would still be nothing the doctors could do to help her. On the other hand, there is today something that parents can do to make sure that this sort of tragedy does not happen to a child of theirs. They can insist that their child is immunised against measles. ...I dedicated two of my books to Olivia, the first was ‘James and the Giant Peach’. That was when she was still alive. The second was ‘The BFG’, dedicated to her memory after she had died from measles. You will see her name at the beginning of each of these books. And I know how happy she would be if only she could know that her death had helped to save a good deal of illness and death among other children."

I just checked google books for BFG, and the dedication is there. 

https://www.google.com.au/books/edition/_/quybcXrFhCIC?hl=en&gbpv=1 


Roald Dahl, 1986
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