Gray out image with CSS?
Does it have to be gray? You could just set the opacity of the image lower (to dull it). Alternatively, you could create a <div>
overlay and set that to be gray (change the alpha to get the effect).
html:
<div id="wrapper"> <img id="myImage" src="something.jpg" /> </div>
css:
#myImage { opacity: 0.4; filter: alpha(opacity=40); /* msie */ } /* or */ #wrapper { opacity: 0.4; filter: alpha(opacity=40); /* msie */ background-color: #000; }
Use the CSS3 filter property:
img {
-webkit-filter: grayscale(100%);
-moz-filter: grayscale(100%);
-o-filter: grayscale(100%);
-ms-filter: grayscale(100%);
filter: grayscale(100%);
}
The browser support is pretty decent, https://caniuse.com/css-filters.
Your here:
<a href="#"><img src="img.jpg" /></a>
Css Gray:
img{
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"); /* Firefox 10+, Firefox on Android */
filter: grayscale(100%);
-moz-filter: grayscale(100%);
-ms-filter: grayscale(100%);
-o-filter: grayscale(100%);
filter: gray; /* IE6-9 */
-webkit-filter: grayscale(100%); /* Chrome 19+, Safari 6+, Safari 6+ iOS */}
Ungray:
a:hover img{
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'1 0 0 0 0, 0 1 0 0 0, 0 0 1 0 0, 0 0 0 1 0\'/></filter></svg>#grayscale");
filter: grayscale(0%);
-moz-filter: grayscale(0%);
-ms-filter: grayscale(0%);
-o-filter: grayscale(0%);
filter: none ; /* IE6-9 */
zoom:1; /* needed to trigger "hasLayout" in IE if no width or height is set */
-webkit-filter: grayscale(0%); /* Chrome 19+, Safari 6+, Safari 6+ iOS */
}
I found it at: http://zkiwi.com/topic/chuyen-hinh-mau-thanh-trang-den-bang-css-nhu-the-nao
Edit: IE10+ does not support DX filters as IE9 and earlier have done, nor does it support a prefixed version of the greyscale filter. You can fix it, use one in two solutions below:
- Set IE10+ to render using IE9 standards mode using the following meta element in the head:
<meta http-equiv="X-UA-Compatible" content="IE=9">
- Use an SVG overlay in IE10 to accomplish the greyscaling internet explorer 10 - howto apply grayscale filter?
If you don't mind using a bit of JavaScript, jQuery's fadeTo() works nicely in every browser I've tried.
jQuery(selector).fadeTo(speed, opacity);