html { -webkit-filter: grayscale(100%); -moz-filter: grayscale(100%); -ms-filter: grayscale(100%); -o-filter: grayscale(100%); filter: grayscale(100%); -webkit-filter: gray; filter: gray; filter: progid:dximagetransform.microsoft.basicimage(grayscale=1) /*ie*/ }
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