making a label bold on service portal

[amap]

I want to make the oob label bold in service portal, I am new to service portal. I want to make the below label bold without having to clone the widget, can I do it on the page level and how with a CSS code snippet would be helpful. 

[Ajaykumar1]

Hi,

OOTB widgets are read-only, you have to clone it. To make a text bold in CSS use font-weight: bold;

Regards,
Ajay

[amap]

Hi Ajay,

Can you help me with the steps?

I am having a hard time to locate the variable and update the CSS snipet

[Ajaykumar1]

In nav bar enter sp_widget, search for the OOTB widget > open it and Clone Widget.

Enter  font-weight: bold; property in CSS field and test it

Eg.      p.thick {
         font-weight: bold;
            }

Regards,
Ajay

[amap]

The thing is I am not able to locate the widget which has this label