Index: src/wp-admin/about.php
===================================================================
--- src/wp-admin/about.php	(revision 25843)
+++ src/wp-admin/about.php	(working copy)
@@ -39,12 +39,14 @@
 	<h3><?php _e( 'Background Updates' ); ?></h3>
 
 	<div class="feature-section col three-col about-updates">
-		<div>
+		<div class="col-1">
 			<h4><?php _e( 'Updates While You Sleep' ); ?></h4>
 			<p><?php _e( 'With WordPress 3.7, you don&#8217;t have to lift a finger to apply maintenance and security updates. Most sites are now able to automatically apply these updates in the background, though some configurations may not allow it.' ); ?></p>
 		</div>
-		<div><img alt="" src="<?php echo admin_url( 'images/about-updates-2x.png' ); ?>" /></div>
-		<div class="last-feature">
+		<div class="col-2">
+			<img alt="" src="<?php echo admin_url( 'images/about-updates-2x.png' ); ?>" />
+		</div>
+		<div class="col-3 last-feature">
 			<h4><?php _e( 'More Reliable Than Ever' ); ?></h4>
 			<p><?php _e( 'The update process has been made even more reliable and secure, with dozens of new checks and safeguards.' ); ?></p>
 			<p><?php _e( 'You&#8217;ll still need to click &#8220;Update Now&#8221; once WordPress 3.8 is released, but we&#8217;ve never had more confidence in that beautiful blue button.' ); ?></p>
Index: src/wp-admin/css/wp-admin-rtl.css
===================================================================
--- src/wp-admin/css/wp-admin-rtl.css	(revision 25843)
+++ src/wp-admin/css/wp-admin-rtl.css	(working copy)
@@ -1706,40 +1706,23 @@
 	float: right;
 }
 
+.about-wrap .feature-section.two-col div,
 .about-wrap .feature-section.three-col div {
 	margin-right: 0;
 	margin-left: 4.999999999%;
 	float: right;
 }
 
-.about-wrap .feature-section.three-col h4 {
-	text-align: right;
-}
-
-.about-wrap .feature-section.three-col img {
-	margin-right: 5px;
+.about-wrap .feature-section.col .last-feature {
 	margin-left: 0;
 }
 
-.about-wrap .feature-section.three-col .last-feature {
+.about-wrap .feature-section div p img {
+	float: left;
 	margin-left: 0;
+	margin-right: 10px;
 }
 
-.about-wrap .feature-section img {
-	margin: 0 0 10px 0.7%;
-}
-
-.about-wrap .feature-section.images-stagger-right img,
-.about-wrap .feature-section.images-stagger-right .video {
-	float: left;
-	margin: 0 2em 12px 5px;
-}
-
-.about-wrap .feature-section.images-stagger-left img {
-	float: right;
-	margin: 0 5px 12px 2em;
-}
-
 .about-wrap li.wp-person,
 .about-wrap li.wp-person img.gravatar {
 	float: right;
@@ -1747,26 +1730,7 @@
 	margin-left: 10px;
 }
 
-@media only screen and (max-width: 900px) {
-	.about-wrap .feature-section.images-stagger-right .video.image-66 {
-		margin-right: 3px;
-	}
-}
 
-@media only screen and (max-width: 768px) {
-	.about-wrap .feature-section .image-66 {
-		float: none;
-	}
-
-	.about-wrap .feature-section.images-stagger-right .image-66 {
-		margin-right: 3px;
-	}
-
-	.about-wrap .feature-section.images-stagger-left .image-66 {
-		margin-left: 3px;
-	}
-}
-
 /*------------------------------------------------------------------------------
   23.0 - Misc
 ------------------------------------------------------------------------------*/
Index: src/wp-admin/css/wp-admin.css
===================================================================
--- src/wp-admin/css/wp-admin.css	(revision 25843)
+++ src/wp-admin/css/wp-admin.css	(working copy)
@@ -2312,7 +2312,7 @@
 }
 
 .wp-core-ui .welcome-panel .button.button-hero {
-    margin: 15px 0 3px;
+	margin: 15px 0 3px;
 }
 
 .welcome-panel-content {
@@ -2378,7 +2378,7 @@
 }
 
 .welcome-panel .welcome-write-blog {
- 	background-position: 0 -44px;
+	background-position: 0 -44px;
 }
 
 .welcome-panel .welcome-panel-column ul {
@@ -2386,8 +2386,8 @@
 }
 
 .welcome-panel .welcome-panel-column li {
-    line-height: 16px;
-    list-style-type: none;
+	line-height: 16px;
+	list-style-type: none;
 }
 
 @media screen and (max-width: 870px) {
@@ -3162,7 +3162,7 @@
 }
 
 .no-js .category-tabs li.hide-if-no-js {
- 	display: none;
+	display: none;
 }
 
 .category-tabs a,
@@ -5775,53 +5775,7 @@
 	-webkit-border-radius: 3px;
 }
 
-.about-wrap .about-passwords {
-	margin: 20px 0;
-	padding: 1px 20px 10px;
-	background-color: #f9f9f9;
-}
 
-.about-wrap .about-auto-update {
-	text-align: center;
-	background-color: #f9f9ef;
-	clear: both;
-	padding: 10px;
-}
-
-.about-wrap .about-auto-update.cool {
-	background-color: #eff9ef;
-}
-
-.about-wrap .about-password-meter input {
-	font-size: 250%;
-	width: 100%;
-    display: block;
-    width: 100%;
-    padding: 5px;
-}
-
-.about-wrap .about-password-meter #pass-strength-result {
-	font-weight: normal !important;
-    display:block !important;
-	font-size: 150%;
-    width: 100%;
-    padding: 17px 0;
-    margin-bottom: 15px;
-}
-
-.about-wrap .feature-section img {
-	border: 0;
-	background: transparent;
-	box-shadow: none;
-	-webkit-box-shadow: none;
-	max-width: 20%;
-}
-
-.about-wrap .feature-section div p img {
-	float: right;
-	margin-left: 10px;
-}
-
 /* Typography */
 
 .about-wrap p {
@@ -5855,8 +5809,8 @@
 }
 
 .about-wrap h3 {
-	font-size: 24px;
-	margin-bottom: 1em;
+	font-size: 1.5em;
+	line-height: 1.5em;
 	padding-top: 20px;
 }
 
@@ -5864,8 +5818,6 @@
 	padding-bottom: 20px;
 }
 
-.about-wrap .feature-section 
-
 .about-wrap .feature-section h4 {
 	margin-bottom: 0.6em;
 }
@@ -5931,81 +5883,20 @@
 
 /* Changelog / Update screen */
 
-.about-wrap .feature-section img,
-.about-wrap .feature-section .video {
-	border: none;
-	margin: 0 1.94% 10px 0;
-	-webkit-border-radius: 3px;
-	border-radius: 3px;
-}
-
-.about-wrap .feature-section .video video {
-	max-width: 100%;
-}
-
 .about-wrap .feature-section.three-col img {
 	margin: 0.5em 0 0.5em 5px;
 	max-width: 100%;
 	float: none;
 }
 
-.ie8 .about-wrap .feature-section.three-col img {
-	margin-left: 0;
-}
-
-.about-wrap .feature-section.images-stagger-right img,
-.about-wrap .feature-section.images-stagger-right .video {
-	float: right;
-	margin: 0 5px 12px 2em;
-}
-
-.about-wrap .feature-section.images-stagger-left img {
-	float: left;
-	margin: 0 2em 12px 5px;
-}
-
-.about-wrap .feature-section .image-100 {
-	margin: 0 0 2em 0;
-	width: 100%;
-}
-
-.about-wrap .feature-section .image-66 {
-	width: 65%;
-}
-
-.about-wrap .feature-section .image-66.video {
-	max-width: 600px;
-}
-
-.about-wrap .feature-section .image-50 {
-	max-width: 50%;
-}
-
-.about-wrap .feature-section img.image-30 {
-	max-width: 31.2381%;
-}
-
-.ie8 .about-wrap .feature-section img {
-	border-width: 1px;
-	border-style: solid;
-}
-
-.about-wrap .images-stagger-right img.image-30:nth-child(2) {
-	margin-left: 1em;
-}
-
 .about-wrap .feature-section.col {
 	margin-bottom: 0;
 }
 
 .about-wrap .feature-section.col h4 {
-	margin:  0 0 0.6em 0;
+	margin: 0 0 0.6em 0;
 }
 
-.about-wrap .feature-section.col .last-feature {
-	margin-right: 0;
-}
-
 .about-wrap .feature-section.two-col div {
 	width: 47%;
 	margin-right: 4.999999999%;
@@ -6018,39 +5909,67 @@
 	float: left;
 }
 
-.about-wrap .three-col.about-updates div:nth-of-type(1),
-.about-wrap .three-col.about-updates div:nth-of-type(3) {
+.about-wrap .three-col.about-updates .col-1,
+.about-wrap .three-col.about-updates .col-3 {
 	width: 37%;
 	margin: 0;
 }
 
-.about-wrap .three-col.about-updates div:nth-of-type(2) {
+.about-wrap .three-col.about-updates .col-2 {
 	width: 16%;
 	margin: 0 5%;
 }
 
+.about-wrap .feature-section.col .last-feature {
+	margin-right: 0;
+}
+
 .about-wrap .three-col.about-updates img {
 	margin: 0;
 }
 
-.about-wrap .three-col-images {
+.about-wrap .changelog .feature-section {
+	overflow: hidden;
+}
+
+.about-wrap .about-passwords {
+	margin: 20px 0;
+	padding: 1px 20px 10px;
+	background-color: #f9f9f9;
+}
+
+.about-wrap .about-auto-update {
 	text-align: center;
+	background-color: #f9f9ef;
+	clear: both;
+	padding: 10px;
 }
 
-.about-wrap .three-col-images img {
-	margin: 0 0 10px;
+.about-wrap .about-auto-update.cool {
+	background-color: #eff9ef;
 }
 
-.about-wrap .three-col-images .last-feature {
-	float: right;
+.about-wrap .about-password-meter input {
+	font-size: 250%;
+	line-height: 1;
+	width: 100%;
+	display: block;
+	width: 100%;
+	padding: 5px;
 }
 
-.about-wrap .three-col-images .first-feature {
-	float: left;
+.about-wrap .about-password-meter #pass-strength-result {
+	display: block !important;
+	font-size: 150%;
+	width: 100%;
+	padding: 17px 0;
+	margin-bottom: 15px;
 }
 
-.about-wrap .changelog .feature-section {
-	overflow: hidden;
+.about-wrap .feature-section div p img {
+	float: right;
+	margin-left: 10px;
+	max-width: 20%;
 }
 
 .about-wrap .changelog li {
@@ -6058,40 +5977,7 @@
 	margin-left: 3em;
 }
 
-@media only screen and (max-width: 900px) {
-	.about-wrap .feature-section.images-stagger-left img,
-	.about-wrap .feature-section.images-stagger-right img,
-	.about-wrap .feature-section.images-stagger-right .video {
-		clear: both;
-	}
 
-	.about-wrap .feature-section .video.image-66 {
-		float: none;
-		width: 98%;
-		max-width: 98%;
-	}
-
-	.about-wrap .feature-section.images-stagger-right .video.image-66 {
-		margin-left: 3px;
-	}
-}
-
-@media only screen and (max-width: 768px) {
-	.about-wrap .feature-section .image-66 {
-		float: none;
-		width: 98%;
-		max-width: 98%;
-	}
-
-	.about-wrap .feature-section.images-stagger-right .image-66 {
-		margin-left: 3px;
-	}
-
-	.about-wrap .feature-section.images-stagger-left .image-66 {
-		margin-right: 3px;
-	}
-}
-
 /* Return to Dashboard Home link */
 
 .about-wrap .return-to-dashboard {
@@ -9368,20 +9254,20 @@
   (min-resolution: 120dpi) {
 
 	.press-this .tagchecklist span a {
-	 	background-image: url('../images/xit-2x.gif');
-	 	background-size: 20px auto;
+		background-image: url('../images/xit-2x.gif');
+		background-size: 20px auto;
 	 }
 
 	.js .postbox:hover .handlediv,
 	.js .stuffbox:hover .handlediv,
 	.widget-top a.widget-action {
-	 	background-image: url('../images/arrows-2x.png');
-	 	background-size: 15px 123px;
+		background-image: url('../images/arrows-2x.png');
+		background-size: 15px 123px;
 	 }
 
 	.widget-top a.widget-action:hover {
-	 	background-image: url('../images/arrows-dark-2x.png');
-	 	background-size: 15px 123px;
+		background-image: url('../images/arrows-dark-2x.png');
+		background-size: 15px 123px;
 	}
 
 	.post-com-count {
@@ -9440,8 +9326,8 @@
 	}
 
 	.wp-full-overlay .collapse-sidebar-arrow {
-	 	background-image: url('../images/arrows-2x.png');
-	 	background-size: 15px 123px;
+		background-image: url('../images/arrows-2x.png');
+		background-size: 15px 123px;
 	 }
 
 	.pressthis a span {