How can i define in a CSS file if i want to take a class of objects, but only those of a specific form When i have to take an entire class i use .className, if a particular id #ObjectID but if i want to select all buttons with class "btn" for a specific form id "_form_test" ? Is this possible ?

Thanks

use a descendant combinator (sounds clever, no?)

// in xxx.css
#_form_test .btn {…}

Too easy....

Thanks