Can’t set the size

Hi I can’t set the size dimensions to my theme (Color News (child))

These are the settings on the code:
[youtube title=”A Minha Vida de Courguete” video=”https://www.youtube.com/watch?v=S0pVfct0Ea4″ autohide=”2″ mute=”1″ cc_load=”1″ cc_lang=”pt” color=”red” controls=”1″ allowfullscreen=”1″ iv_load_policy=”3″ theme=”dark” quality=”hd720″ maxw=”560″ button_layout=”default” button_theme=”default” button_subscriber_count=”default”]

And the freme is very tiny. Doesn’t matter the “maxw” I set, the size is allways the same.

Can you help please?

Thank you,
Rui Freitas