404 and 500 pages require some responsive adjustments

[PerryCodes]

[PerryCodes]

I'm noticing similar behavior across several other BootstrapDash templates. Not sure if this factors into rendering results... but here's some specs on my environment:

• Mid 2015 Macbook Pro, Retina display
• Resolution: default for display
• OSX 10.14.5 macOS Mojave
• Chrome browser (79.0.3945.88)

[kienyb12]

Undefined variable: "$action-transition-duration".demo_1\src\assets\styles_misc.scss (line 45, column 23)
@import "../assets/styles/m isc";

please help me ....