Make new options page compatible with edge

skin/desktop-options.css

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
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@@ skipping 232 matching lines @@
 html[dir="rtl"] .side-controls button
 {
   margin-right: 1rem;
 }
 
 .side-controls.wrap button
 {
   margin: 0.6rem 0rem;
 }
 
-html:not([dir="rtl"]) .side-controls.wrap buttonn

[Thomas Greiner, 2018/01/22 13:06:38]

Typo: Replace "buttonn" with "button"

+html:not([dir="rtl"]) .side-controls.wrap button
 {
   margin-left: auto;
 }
 
 html[dir="rtl"] .side-controls.wrap button
 {
   margin-right: auto;
 }
 
 /*
@@ skipping 297 matching lines @@
 
 #sidebar,
 #sidebar .fixed,
 [role="tablist"]
 {
   width: 14.3rem;
 }
 
 #sidebar
 {
-  flex-shrink: 0; 

[Thomas Greiner, 2018/01/22 13:06:38]

Detail: Interesting that you added some trailing whitespace here because I
assumed your setup prevents you from doing so.

+  flex-shrink: 0;
 }
 
 #sidebar .fixed
 {
   top: 1.2rem;
   bottom: 0rem;
   height: auto;
 }
 
 #sidebar header
@@ skipping 92 matching lines @@
 {
   display: flex;
   justify-content: center;
   margin: 1rem 0rem;
 }
 
 /* This is a stopgap solution of footer overlapping tabs on low resolutions */
 @media (min-height: 37rem)
 {
   #sidebar .fixed
-{
+  {
     position: fixed;
   }
 
   #sidebar footer
-{
+  {
     bottom: 0px;
     position: absolute;
   }
-

[Thomas Greiner, 2018/01/22 13:06:38]

Detail: I assume those three changes were made by your linter setup so I'd
suggest checking your configuration for issues.

 }
 
 /*
   Main content
  */
 
 body[data-tab|="general"] #content-general,
 body[data-tab|="advanced"] #content-advanced,
 body[data-tab|="whitelist"] #content-whitelist,
 body[data-tab|="help"] #content-help
@@ skipping 888 matching lines @@
   font-size: 1rem;
   color: #077CA6;
   background-color: #E1F2FA;
 }
 
 #notification strong
 {
   flex: 1;
   text-align: center;
 }