issue 3741 - Add "remove" option to list items in new options page

skin/new-options.css

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 351 matching lines @@
   padding: 12px 16px;
   border-radius: 3px;
 }
 
 .table.list,
 #custom-wrapper
 {
   border-bottom: 1px solid #CDCDCD;
 }
 
-.table.list li .display
+.table.list li .display,
+.fill
 {
   flex: 1;
   line-height: 16px;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
 .table:not(.list):not(.cols) li
 {
@@ skipping 553 matching lines @@
   position: absolute;
   -webkit-transition: opacity 200ms ease-in-out 400ms,
     visibility 0ms linear 400ms;
   transition: opacity 200ms ease-in-out 400ms,
     visibility 0ms linear 400ms;
   visibility: visible;
   width: 400px;
   z-index: 1;
 }
 
-html[dir="ltr"] div[role="tooltip"].flip-vertical,
-html[dir="rtl"] div[role="tooltip"]:not(.flip-vertical)
+html[dir="ltr"] div[role="tooltip"].flip-horizontal,
+html[dir="rtl"] div[role="tooltip"]:not(.flip-horizontal)
 {
   left: inherit;
   right: -20px;
 }
 
 .tooltip:not(:hover) > div[role="tooltip"],
 div[role="tooltip"]:hover
 {
   visibility: hidden;
   opacity: 0;
@@ skipping 96 matching lines @@
 .context-menu .source::before
 {
   background-position: -53px -34px;
 }
 
 .context-menu .delete::before
 {
   background-position: -71px -34px;
 }
 
-html[dir="ltr"] div[role="tooltip"].flip-vertical::before,
-html[dir="rtl"] div[role="tooltip"]:not(.flip-vertical)::before
+html[dir="ltr"] div[role="tooltip"].flip-horizontal::before,
+html[dir="rtl"] div[role="tooltip"]:not(.flip-horizontal)::before
 {
   left: inherit;
   right: 30px;
 }
 
 div[role="tooltip"] img
 {
   float: left;
   height: 64px;
   margin-top: -2px;
@@ skipping 242 matching lines @@
 #other-language .button-add::before
 {
   display: none;
 }
 
 #other-language .display
 {
   -webkit-margin-start: 10px;
   -moz-margin-start: 10px;
 }