Why go layout?

Tell me why got beyond the container and how to fix it.
And that only happens if you use margin-right in %, px, everything is OK..
https://codepen.io/anon/pen/mYNbEP
March 23rd 20 at 19:33
1 answer
March 23rd 20 at 19:35
I remember something similar happened, if the content was out for the grid bootstrap, it appeared a white stripe. If you do not want indents on the sides, so better use container-fluid for a place container. Or play with bs.

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