Uchiwa Branding/Logo not displaying properly in Firefox 58.0b11 Developer Edition

[markandrewj]

Expected Behavior

Branding/Logo to be displayed in the upper left of Uchiwa while using Firefox Quantum.

Current Behavior

Branding/Logo is not visible in upper left of Uchiwa while using Firefox Quantum.

Possible Solution

Change:

.theme-logo {
  content: url("../../img/uchiwa-white.png")
}

To:

.theme-logo::before {
  content: url("../../img/uchiwa-white.png")
}

Steps to Reproduce (for bugs)

Use Uchiwa in latest edition of Firefox (Firefox Quantum).

[markandrewj]

I pulled in the change today and it seems to be working well. Thanks.