It would be even better if you could set width for a property

[lmrwork]

Thanks for your contribution, I really like this component.
It would be even better if you could set width for a property, like this:
new SidebarElement({ width:300 });

[lorenzodianni]

Hi @lmrwork, you can already change width via CSS, what is the use case that fit with JS and not with CSS?