Datepicker is bound to bottom left of page instead of right under element

[Mehnock]

Hello,

I've been at this for hours and don't know what is wrong. I have a datepicker on my page and when I click the input, the calendar shows at the bottom left of the page. I coped it to a blank page and still behaves the same.

I suspect it's some CSS problem but how can I fix it?

I've downloaded the dist folder and added it to my project, then linked all the css/js files in the header.