Length vertical arrow in commutative diagram

Question

Consider the following code for a commutative diagram

\begin{tikzcd}[column sep=50pt]
A \arrow{d}\arrow{r} & B \arrow[leftarrow]{dl}\\
C
\end{tikzcd}

I have been able to make the right arrow from A to B longer by adding the argument [column sep=50pt]. How can I make the vertical arrow from A to C longer?

Answer 1

Two basic options are:

1. Add an appropriate row sep.
2. Add a distance after \\, e.g. \\[1.5cm].

These options do not do precisely the same in the sense that the distance specified has different meanings as is illustrated in the following example.

\documentclass{article}
\usepackage{tikz-cd}
\begin{document}
\[\begin{tikzcd}[column sep=50pt,row sep=50pt]
A \arrow{d}\arrow{r} & B \arrow[leftarrow]{dl}\\
C
\end{tikzcd}
\qquad\begin{tikzcd}[column sep=50pt]
A \arrow{d}\arrow{r} & B \arrow[leftarrow]{dl}\\[50pt]
C
\end{tikzcd}
\]
\end{document}

The first option might be better to set a universal row separation, the second one if you only want to change one out of several.