alignRight on el doesn't work inside row layout

[neocris]

The big picture of what I'm trying to do

i'm trying to align an el inside a row. i'm using style-elements 4.3.0 but found the behavior the same for v.5. i found a similar issue #101 but for center attribute instead

What I did

https://ellie-app.com/3YFCYLDwLnJa1

What I Expected To Happen

the 'right' text element right aligned with respect to row layout

What Actually Happened

the element flowed next to 'middle' text element as if it had no right alignment set

Versions

• Elm: 0.18
• style-elements: 5.0.1 and 4.3.0
• Browser: Firefox 63.0.3
• Operating System: Win10