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Help needed: CSS animated line help

I have generated this html from a logo graphic artwork that I am working on below:

.cls-1{fill:#652e2f;stroke:#652e2f;stroke-miterlimit:10;}Untitled-2

I wish to animate it, similar to the eradicated line graphic of the 2018 Tesla ‘loader’ cover example here:

I am having a lot of problems trying to make the embedded code to work within my site. Is anyone able to help?