What's wrong ?

Question

https://code.sololearn.com/Wq57it5bmO13/?ref=app

why the circle doesn't have any movement ?

Answer 1

You have to specify a valid attribute at the 'attributeName'.
For example, if you want your circle to move on the x-axis, then you put the x attribute in it: cx.
For the y-axis it is cy

<animate attributeName="cx"
from="0" to="200"
dur="4s" fill="freeze" repeatCount="3"/>