Scale path from center

Question

I have the following SVG graphic:

Answer 1

The answer provided by aetheria earlier is great. There is another thing to take care of as well -- stroke-width, so that the outline stays of the same width while the object scales. Usage:

stroke-width: (1/scaling-factor)

So, if your scaling is by say 2, then:

stroke-width: (0.5)

NOTE: You shouldn't missout the transform: translate(...) scale(2) as mentioned by aetheria.