Hello

I have checked my site with W3C validators (http://jigsaw.w3.org/css-validator/) and they found the following errors:

.

URI:

/wp-content/plugins/wp-accessibility/toolbar/css/a11y.css?ver=4.0.1

Lines:

109 .desaturated Property filter doesn't exist: grayscale(100%)

115 .desaturated Property filter doesn't exist: 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")

116 .desaturated Property filter doesn't exist: gray

.

1. I am using  WordPress & WP Accessibility plugin.

2. I need to have the grayscale converter to my site for Disabled Persons.

3. My site has to pass W3C validation.

I would appreciate any help. Thanks again.

Ever grateful