Why doesn't the size of the svg icon change?

Question

SVG

The site uses svg icons. I'm trying to enlarge. I set it to 35 pixels, and it is small.
https://jsfiddle.net/rez496ap/
Please explain what and how to change in order to get the required size?

Answer 1

What about the width and height properties? Use them .

Answer 2

https://jsfiddle.net/rez496ap/16/