[Clean up] Fix style guide nits in chrome/browser/resources/ntp4.

chrome/browser/resources/ntp4/recently_closed.css

 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 #recently-closed-menu-button {
   -webkit-appearance: none;
   -webkit-padding-end: 15px;
   -webkit-padding-start: 9px;
   -webkit-transition: opacity 200ms;
   -webkit-transition-delay: 100ms;
   background: none;
   border: 0;
   color: #7F7F7F;
   cursor: pointer;
   display: block;
-  margin: 0;
   font-size: 9pt;
   font-weight: bold;
   height: 100%;
+  margin: 0;
   /* The padding increases the clickable area. */
   padding-bottom: 0;
   padding-top: 0;
 }
 
 .enable-cws-experiment #recently-closed-menu-button {
-  position: relative;
   -webkit-margin-end: 0;
   -webkit-padding-end: 16px;
+  position: relative;
 }
 
 #recently-closed-menu-button:hover:not([menu-shown]) {
   color: #666;
 }
 
 #recently-closed-menu-button:hover:not([menu-shown]) .disclosure-triangle {
   background-color: #666;
 }
 
 #recently-closed-menu-button[menu-shown] {
   color: #555;
 }
 
 #recently-closed-menu-button[menu-shown] .disclosure-triangle {
   background-color: #555;
 }
 
 /* Reserve space for the menu button even when it's hidden. */
 #recently-closed-menu-button.invisible,
 #footer.showing-trash-mode #recently-closed-menu-button {
   visibility: hidden;
 }
 
 #footer.showing-trash-mode #recently-closed-menu-button {
+  -webkit-transition-delay: 0;
   opacity: 0;
-  -webkit-transition-delay: 0;
 }
 
 #recently-closed-menu-button > * {
   vertical-align: middle;
 }
 
 .recent-menu {
   padding: 6px 8px;
   /* Needs to be above #footer. */
   z-index: 10;
 }
 
 .recent-menu-item {
+  -webkit-margin-end: 8px;
+  -webkit-margin-start: 0;
+  -webkit-padding-end: 0;
+  -webkit-padding-start: 22px;
   background: no-repeat 0 50%;
   background-color: transparent !important;
   background-size: 16px 16px;
   box-sizing: border-box;
   display: block;
   font-size: 100%;
   line-height: 20px;
-  margin: 8px;
+  margin-bottom: 8px;
+  margin-top: 8px;
   max-width: 450px;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
-  -webkit-margin-start: 0;
-  -webkit-padding-end: 0;
-  -webkit-padding-start: 22px;
 }
 
 .recent-menu-item:not(:hover) {
   text-decoration: none;
 }
 
 .recent-menu-item:first-of-type {
   margin-top: 4px;
 }
 
@@ skipping 10 matching lines @@
 }
 
 /* TODO(estade): find a better color for active. */
 .recent-menu-item:active,
 .recent-menu-item:visited,
 .recent-menu-item:link {
   color: hsl(213, 90%, 24%) !important;
 }
 
 .disclosure-triangle {
+  -webkit-margin-start: 2px;
+  -webkit-mask-image: url('images/disclosure_triangle_mask.png');
   background-color: #7F7F7F;
   display: inline-block;
   height: 9px;
   width: 9px;
-  -webkit-margin-start: 2px;
-  -webkit-mask-image: url('images/disclosure_triangle_mask.png');
 }
 
 #vertical-separator {
   background-color: #B2B2B2;
   display: none;
   height: 20px;
   left: 15px;
   position: relative;
   right: 15px;
   width: 1px;
 }
 
 .enable-cws-experiment #vertical-separator {
   display: inline-block;
 }