Hide post content in grid (location page) but display on details page

On the location page, when displaying a grid, I wanted to hide the content excerpt that appears under the photo (where the text fades and there’s a “read more” link. I was able to accomplish that with this:

Div.geodir_post_meta.geodir-field-post_content {
Display:none;
}

However, this also removes it from the details page, where I definitely want it to appear. I tried to find the css class that separates the two, but haven’t been able to do it. Any ideas? Thanks.