Cannot use other units than 'px' for $alert-padding variable
Created by: webmasterlv
In v4 alpha3:
If trying to override $alert-padding with something like
$alert-padding: 1rem
The Sass compilation fails with
Error: Incompatible units: 'px' and 'rem'.
Because in _alert.scss there's this
padding-right: ($alert-padding + 20px);