Has CCS changed for hiding quantity selector?

[MarkMacAllister]

A forum entry from some five years ago indicates that, to hide the quantity selector on individual products, one would use the following CSS:

.page-id-XXX .ec_product_details_quantity {
display: none;
}

where "XXX" is the page-id of the product you wish to hide.

I have been trying to use that code in my EasyCart install but it does not seem to hide the selector; in fact, it does not seem to have any impact at all.

As an aside, I am plugging that CSS into the "Custom CSS" section in the "Design" settings under the general settings: so Settings>Design>Custom CSS

FWIW, I also tried the suggested global CSS in the very same "Custom CSS" section:

.ec_product_details_quantity {
display: none;
}

Unfortunately that had no impact either.

Any suggestions/advice very much appreciated! Thanks!

[jjones]

Yes, the CSS from 5 years ago has changed and you would use .ec_details_quantity instead.

.page-id-XXX .ec_details_quantity {
display: none;
}

This would target a specific page.