tikz node newline gap too large

Question

 \node[text width=3cm,rotate=90] at ([shift={(0ex, 0x)}] pic cs:fig1) {{\tiny{First\\Line}}};  

Either setting the width to be small or using \\ will split the text but it has a huge gap between First and Line. Enough to stick my thumb between them. It's as if whatever space would be used with \tiny is being used. I want the gap between the two lines to be almost nil. I could use another node and position it but that seems like overkill.

Answer 1

It seems that your example works just fine if you change \tiny to the option font=\tiny. That corrects the baselines.

\documentclass[tikz]{standalone}
\begin{document}
 \tikz \node[text width=3cm,rotate=90,font=\tiny] at (0,0) {{First\\Line}};  
\end{document}