Hiding 'Request Revision' button

Hi,
Our journal decided to only accept or reject submission without revision option. Is there a way to hide the 'Request Revision" button using css?

I tried the inspect element function in chrome, and add display: none; under the element.style{ } or .pkp_workflow_decision a{ }, it works.

rev-button

When I upload stylesheet file with:

.pkp_workflow_decision a{
display: none;
}

or using the button id, the button still appears. Anyway to hide it?
Thank you

OJS version: 3.3.0.3