oops, I managed to fix everything, but the hint of error, for people who do not know how to fix this is important. the following properties do not exist in the catalog of the validator:
-moz-box-shadow:
-webkit-box-shadow:

These properties are browser specific (FireFox and WebKit based browsers like Google Chrome and Safari). You can remove it from CSS file if you don't want to use some CSS 3 features in these browsers.

Regard,
ARI Soft

yes, I know I already checked this, the problem to validate that the site does not validate, I prefer to use templates and modules that may not use these resources. but nothing against a validated layout better brand impression.

Not a problem, the module is open source and you can remove these properties from CSS file if you don't want to use them. The extension provides better look in many browsers with these properties.

PS: You can create new theme based on currently used theme and remove unnecessary CSS properties. Process of creation new theme is described in "Description" field on module settings page in "How to create new theme?" section.

Regards,
ARI Soft

I've got the same problem. I installed the very last update. With the last version I solved the HMTL validation errors, but not the CSS ones. This is what i get from w3c CSS validator:

jigsaw.w3.org/css-validator/validator?uri=www.elvezia.com&profile=css3&usermedium=all&warning=1&lang=it

Note that both:
URI : www.elvezia.com/modules/mod_ariimageslider/mod_ariimageslider/js/themes/default/style.css
URI : www.elvezia.com/
have errors caused by ARI Image Slider module. I set the CSS version as 3. Will you solve the errors in next update or I should try some other solutions by myself?

Thank you very much!
Matteo

Hello,

"-moz-box-shadow", "-webkit-box-shadow", "-o-box-shadow" are browser's specific CSS properties (old versions of FireFox, Safari and Google Chrome, Opera browsers) for emulation "box-shadow" CSS 3 property for browsers which doesn't support native CSS 3 specification. You can remove these properties from CSS file if you don't want to show shadow border in these browsers.

Regards,
ARI Soft