Convert the icon into a monochrome color scheme

Here is an icon included in my code:

HTML:

<a href="#" id="PickUp" class="PickUpIcon"></a>

CSS:

width: 24px;
height: 24px;
background: url(../images/Icons/Answer.jpg) no-repeat;
cursor: pointer;

This icon appears as described. Is it possible to use CSS, JavaScript or jQuery to turn this color icon into a black and white version? I am limited to using HTML 4, CSS2, and IE 8, so I can't utilize HTML5 or other browsers. While I could potentially use two different icons, I'm interested in exploring alternative methods since icons are dynamically added and I don't want to require multiple versions from everyone.

javascriptjqueryhtmlcssinternet-explorer

Answer №1

If you want to achieve this, SVG is the way to go.

For a detailed explanation, please refer to this answer 

<svg xmlns="http://www.w3.org/2000/svg">
 <filter id="grayscale">
  <feColorMatrix type="matrix" values="0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0"/>
 </filter>
</svg>

Next, apply the following CSS:- [Demo]

img {
    filter: url(filters.svg#grayscale); /* Firefox 3.5+ */
    filter: gray; 
    -webkit-filter: grayscale(1); 
}

To remove grayscale on hover, use:-

img:hover {
    filter: none;
    -webkit-filter: grayscale(0);
}

Answer №2

If you want to convert images to black and white using CSS, you can apply the filter: grayscale(100%); property. Keep in mind that this feature is currently supported only in Chrome.

<a href="#" id="ConvertBW" class="BWIcon">
    <img src='https://i.sstatic.net/tVNmr.jpg' class="bw" />
</a>

img.bw {
    filter: grayscale(100%);
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    width: 24px;
    height: 24px;
    cursor: pointer;
}

Check out an example here

Source

Answer №3

    h1 { 
     text-transform: uppercase;
    }

Answer №4

This particular code snippet has been successfully implemented on several websites in the past, ensuring full compatibility across various browsers:

element { 
    filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
    filter:gray;
    -webkit-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: gray(1);
    filter: grayscale(100%);
}

Answer №5

div { 
width: 24px;
height: 24px;
background: url(https://i.sstatic.net/tVNmr.jpg) no-repeat;
cursor: pointer;
display: block;
filter: grayscale(100%);
-webkit-filter: grayscale(100%);
-moz-filter: grayscale(100%);
-ms-filter: grayscale(100%);
-o-filter: grayscale(100%);
}

Take a look at this example

Answer №6

One effective technique is utilizing CSS sprites.

This method works universally and is a common practice in the design of websites.

You can incorporate an icon containing multiple images positioned next to each other, showcasing only a selected segment of the image by adjusting the properties such as background-position, width, and height of background-image

Answer №7

.PickUpIcon a:hover {
  width: 24px;
  height: 24px;
  background: url(../images/Icons/Answer_grey.jpg) no-repeat;
  cursor: pointer;
}

Utilize Answer_grey.jpg as your grey image for this specific section. This method is effective and compatible with all web browsers. Alternatively, consider combining both the green and grey images into one composite image, allowing for a seamless transition on hover by displaying different sections of the image. This approach can improve loading times, as only one image needs to be loaded initially instead of two separate images.

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