Normalize rather than Reset.

The reset we used was a mix of Normalize, the Paul Irish reset,
sprinkled with some blueprint.css, and base styles. It was hard to
maintain and just seemed outdated (setting the base font-size to 10px
instead of 16px, among other things).

Normalize sets saner defaults and is generally just not as disruptive
as a full reset.

The code was added as is, has only its comments stripped (for now), and
is not mixed with any styles to make future updates to it as easy as
possible.

See #3, #44, #174, #267, #617.

sass/_normalize.scss

@@ -0,0 +1,215 @@
+html {
+	font-family: sans-serif;
+	-webkit-text-size-adjust: 100%;
+	-ms-text-size-adjust:     100%;
+}
+
+body {
+	margin: 0;
+}
+
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+main,
+menu,
+nav,
+section,
+summary {
+	display: block;
+}
+
+audio,
+canvas,
+progress,
+video {
+	display: inline-block;
+	vertical-align: baseline;
+}
+
+audio:not([controls]) {
+	display: none;
+	height: 0;
+}
+
+[hidden],
+template {
+	display: none;
+}
+
+a {
+	background-color: transparent;
+}
+
+a:active,
+a:hover {
+	outline: 0;
+}
+
+abbr[title] {
+	border-bottom: 1px dotted;
+}
+
+b,
+strong {
+	font-weight: bold;
+}
+
+dfn {
+	font-style: italic;
+}
+
+h1 {
+	font-size: 2em;
+	margin: 0.67em 0;
+}
+
+mark {
+	background: #ff0;
+	color: #000;
+}
+
+small {
+	font-size: 80%;
+}
+
+sub,
+sup {
+	font-size: 75%;
+	line-height: 0;
+	position: relative;
+	vertical-align: baseline;
+}
+
+sup {
+	top: -0.5em;
+}
+
+sub {
+	bottom: -0.25em;
+}
+
+img {
+	border: 0;
+}
+
+svg:not(:root) {
+	overflow: hidden;
+}
+
+figure {
+	margin: 1em 40px;
+}
+
+hr {
+	box-sizing: content-box;
+	height: 0;
+}
+
+pre {
+	overflow: auto;
+}
+
+code,
+kbd,
+pre,
+samp {
+	font-family: monospace, monospace;
+	font-size: 1em;
+}
+
+button,
+input,
+optgroup,
+select,
+textarea {
+	color: inherit;
+	font: inherit;
+	margin: 0;
+}
+
+button {
+	overflow: visible;
+}
+
+button,
+select {
+	text-transform: none;
+}
+
+button,
+html input[type="button"],
+input[type="reset"],
+input[type="submit"] {
+	-webkit-appearance: button;
+	cursor: pointer;
+}
+
+button[disabled],
+html input[disabled] {
+	cursor: default;
+}
+
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+	border: 0;
+	padding: 0;
+}
+
+input {
+	line-height: normal;
+}
+
+input[type="checkbox"],
+input[type="radio"] {
+	box-sizing: border-box;
+	padding: 0;
+}
+
+input[type="number"]::-webkit-inner-spin-button,
+input[type="number"]::-webkit-outer-spin-button {
+	height: auto;
+}
+
+input[type="search"] {
+	-webkit-appearance: textfield;
+	box-sizing: content-box;
+}
+
+input[type="search"]::-webkit-search-cancel-button,
+input[type="search"]::-webkit-search-decoration {
+	-webkit-appearance: none;
+}
+
+fieldset {
+	border: 1px solid #c0c0c0;
+	margin: 0 2px;
+	padding: 0.35em 0.625em 0.75em;
+}
+
+legend {
+	border: 0;
+	padding: 0;
+}
+
+textarea {
+	overflow: auto;
+}
+
+optgroup {
+	font-weight: bold;
+}
+
+table {
+	border-collapse: collapse;
+	border-spacing: 0;
+}
+
+td,
+th {
+	padding: 0;
+}

sass/elements/_elements.scss

@@ -1,3 +1,22 @@
+*,
+*:before,
+*:after { /* Inherit box-sizing to make it easier to change the property for components that leverage other behavior; see http://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/ */
+	box-sizing: inherit;
+}
+
+body {
+	background: $color__background-body; /* Fallback for when there is no custom background color defined. */
+}
+
+blockquote:before, blockquote:after,
+q:before, q:after {
+	content: "";
+}
+
+blockquote, q {
+	quotes: "" "";
+}
+
 hr {
 	background-color: $color__background-hr;
 	border: 0;
@@ -12,8 +31,4 @@ img {
 	max-width: 100%; /* Adhere to container width. */
 }
 
-figure {
-	margin: 0;
-}
-
 @import "tables";

sass/elements/_tables.scss

@@ -1,8 +1,4 @@
 table {
 	margin: 0 0 1.5em;
 	width: 100%;
-}
-
-th {
-	font-weight: bold;
 }

sass/forms/_buttons.scss

@@ -8,9 +8,7 @@ input[type="submit"] {
 	background: $color__background-button;
 	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), inset 0 15px 17px rgba(255, 255, 255, 0.5), inset 0 -5px 12px rgba(0, 0, 0, 0.05);
 	color: rgba(0, 0, 0, .8);
-	cursor: pointer; /* Improves usability and consistency of cursor style between image-type 'input' and others */
-	-webkit-appearance: button; /* Corrects inability to style clickable 'input' types in iOS */
-	@include font-size(1.2);
+	@include font-size(0.75);
 	line-height: 1;
 	padding: .6em 1em .4em;
 	text-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);

sass/forms/_fields.scss

@@ -1,23 +1,3 @@
-input[type="checkbox"],
-input[type="radio"] {
-	padding: 0; /* Addresses excess padding in IE8/9 */
-}
-
-input[type="search"] {
-	-webkit-appearance: textfield; /* Addresses appearance set to searchfield in S5, Chrome */
-	box-sizing: content-box;
-}
-
-input[type="search"]::-webkit-search-decoration { /* Corrects inner padding displayed oddly in S5, Chrome on OSX */
-	-webkit-appearance: none;
-}
-
-button::-moz-focus-inner,
-input::-moz-focus-inner { /* Corrects inner padding and border displayed oddly in FF3/4 www.sitepen.com/blog/2008/05/14/the-devils-in-the-details-fixing-dojos-toolbar-buttons/ */
-	border: 0;
-	padding: 0;
-}
-
 input[type="text"],
 input[type="email"],
 input[type="url"],
@@ -47,8 +27,6 @@ input[type="search"] {
 }
 
 textarea {
-	overflow: auto; /* Removes default vertical scrollbar in IE6/7/8/9 */
 	padding-left: 3px;
-	vertical-align: top; /* Improves readability and alignment in all browsers */
 	width: 100%;
 }

sass/forms/_forms.scss

@@ -1,12 +1,3 @@
-button,
-input,
-select,
-textarea {
-	font-size: 100%; /* Corrects font size not being inherited in all browsers */
-	margin: 0; /* Addresses margins set differently in IE6/7, F3/4, S5, Chrome */
-	vertical-align: baseline; /* Improves appearance and consistency in all browsers */
-}
-
 @import "buttons";
 
 @import "fields";