Output Wrong CSS

[0xtoorich]

original CSS:

.elem {
  margin: 0 .-18rem;
}

output:

.elem{margin: 0.-18rem}

expected:

.elem{margin: 0 .-18rem}

[pocketjoso]

Hi! I cannot reproduce this. Do you still have the error? If so, could a reproducible test case - or at least a url this happens on?