How to increase canvas dimensions?

Question

css

Hello!
There is a blog , in the header of which a canvas is inserted that reacts to the approach of the mouse. You may notice that sometimes expanding bubbles are "cut off", which is caused by the small size of the element. Can you suggest how this can be corrected?

Answer 1

The canvas size is set here:
You can either use fixed values ​​or set it dynamically depending on the screen size