Stupid auto-hide taskbar line

[Blue]

Now, I have auto hide task bar thingie on, so it disappears, but when it does, it leaves this small, yet annoying grey line (same colour as the theme) running right along the bottom, which stands out quite badly on the black background. Sooo, I'm wondering if there is any fix/program that sorts it/a black theme that looks good

[spareparts]

Right click > lock task bar?

[Blue]

Nope, still shows

[spareparts]

Oh, I thought that could have been it because that appears when I unlock my task bar. Sorry.

[Blue]

No problem
I've decided just to use a prgramme to fade it out, so now its not so noticable

[Blue]

No problem
I've decided just to use a prgramme to fade it out, so now its not so noticable