problem with css

just when you download the nop commerce v.1.9 can see the problem with css.the problem is :
convalid (css 2.1);'font-size-adjust' is not known as proprety of css.it's give me error
2-convalid (css 2.19; 'font-stretch' is not  known as property of css
3-Avviso  6 'System.Web.UI.Page.GetPostBackClientEvent(System.Web.UI.Control, string)' è obsoleto: '"The recommended alternative is ClientScript.GetPostBackEventReference. http://go.microsoft.com/fwlink/?linkid=14202"'

anyone can help me with these errors?

thanks

Just remove those csasses.

hi
i have error also in: Global Radiobutton.cs  where:
onClick += Page.GetPostBackClientEvent(this, String.Empty);
its giving me error do you know how to resolve?
thanks

wxDevelopment wrote:   sorry i mistake i wanted to give 5 ,very sorry