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2018-05-15 14:53:58 / 2018-05-15 14:53:58
<style>
.grayimg {
filter: url(filters.svg#grayscale); /* Firefox */
filter: gray; /* IE */
-webkit-filter: grayscale(1); /* Webkit */
}
.grayimg:hover {
filter: none;
-webkit-filter: grayscale(0);
}
</style>
/********************************************************************************/
<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>
Then use this CSS:- [Demo]
img {
filter: url(filters.svg#grayscale); /* Firefox 3.5+ */
filter: gray; /* IE6-9 */
-webkit-filter: grayscale(1); /* Google Chrome & Safari 6+ */
}
To disable grayscale on hover you can use:-
img:hover {
filter: none;
-webkit-filter: grayscale(0);
}