region.lower.third move downward

[djuscha]

I would like region.lower.third move downward, if I do that main.css

.region.lower.third {
  top: 78%;
}

original 66% does it work
if I do custom.css

region.lower.third {
  top: 78%;
}

it will not be changed .
is my spelling wrong?

[Ultimatum22]

In your second code example you are missing the . for region.

Make sure you copy paste the code exactly, dots and hashes are important