Issue with "who to follow" tab, following button exceeds margin

While browsing Utopian.io, I noticed that if the username of a person is very long and I am following that person and if his name appears on the "who to follow" tab, then the following button beside his/her username exceeds the margin of the tab.

The following button beside onceuponatime is not aligned with other follow or following buttons:

How to reproduce:

Follow many users with long usernames. In chrome, visit https://utopian.io/@[your username] and click on the refresh icon in the who to follow tab. Keep on clicking until a long named user whom you follow appears.

OS: Chrome 58.