Board Thread:Support Requests - Getting Technical/@comment-30398052-20170520075124

I would like to make a tabber inside a table of a navbox, but I want to change the looks of it. I have only no idea how to do that because I'm not familiar with CSS. First, I would like to use my personal CSS, because, if I'm right, I can add content to a navbox and it will automatically be changed by my CSS coding. Can someone please help me so the Tabber of my navbox would look better in the template I created? I want this to do on my personal CSS so I can experiment a little bit.

Also, I don't want to change the original tabber. So when I added the CSS, I would like to still be able to use the default version. I guess/hope that's possible by creating a different tabber using "class=".

Another little problem I encountered is that when I add a table inside a table, the cellspacing is double at that place. What I mean is 'Table1/Cell' is not as big as I want them to be; it is not as big as 'Table2/Cell'. How do I do that? 