How to make catalog item variable label to bold

[viru2]

We have a catalog item and we would like to make one field label to bold/ increase the font size of the variable.
I came across with couple of posts and tried with their solutions.

Following are the links I have gone through and I tried with the solutions too but it didn't worked well.

https://community.servicenow.com/community?id=community_question&sys_id=95168b61db1cdbc01dcaf3231f9619f6

https://community.servicenow.com/community?id=community_question&sys_id=f2628beddb98dbc01dcaf3231f96199b

https://community.servicenow.com/community?id=community_question&sys_id=a97b83061b583c10a17c62c4bd4bcbe0

https://community.servicenow.com/community?id=community_question&sys_id=c529ab96dba810104819fb2439961917

https://community.servicenow.com/community?id=community_question&sys_id=aabe3dc3dbd79410fa192183ca961959

Please help to provide any alternative solution that will meet my requirement.

[Brian Lancaster]

A lot of these are using DOM Manipulation which is not recommended best practice. In order to use this there is a checkbox on client script which is not on the form OOB called Isolate script. This would need to be uncheck but it still may not work in the Service Portal if you are using that. Otherwise I would suggest tasking another look at this post.

https://community.servicenow.com/community?id=community_question&sys_id=c529ab96dba810104819fb243996...