Can't modify a CSS class

[santilococo]

Describe the issue or problem
I can’t modify a CSS class. I need to modify this specific file which is in lib/pkp/styles/form/form.less. After modifying it in “my” ojs the class seems to always come with the original value.

Steps I took leading up to the issue

1. Modify the class .pkp_form .localization_popover in file lib/pkp/styles/form/form.less. For example, I want it to be:

	.localization_popover {
		display: none;
		position: static;
		padding: 0.5rem;
		background-color: @bg;
	}

2. The page seems to never load this change.

What application are you using?
OJS 3.1.2.4