diff --git a/style.css b/style.css
index c8362c0c49..d7d2b0f629 100644
--- a/style.css
+++ b/style.css
@@ -46,215 +46,453 @@ Nicolas Gallagher and Jonathan Neal http://necolas.github.io/normalize.css/
 /*--------------------------------------------------------------
 # Normalize
 --------------------------------------------------------------*/
+
+/*! normalize.css v7.0.0 | MIT License | github.com/necolas/normalize.css */
+
+/* Document
+   ========================================================================== */
+
+/**
+ * 1. Correct the line height in all browsers.
+ * 2. Prevent adjustments of font size after orientation changes in
+ *    IE on Windows Phone and in iOS.
+ */
+
 html {
-	font-family: sans-serif;
-	-webkit-text-size-adjust: 100%;
-	-ms-text-size-adjust:     100%;
+  line-height: 1.15; /* 1 */
+  -ms-text-size-adjust: 100%; /* 2 */
+  -webkit-text-size-adjust: 100%; /* 2 */
 }
 
+/* Sections
+   ========================================================================== */
+
+/**
+ * Remove the margin in all browsers (opinionated).
+ */
+
 body {
-	margin: 0;
+  margin: 0;
 }
 
+/**
+ * Add the correct display in IE 9-.
+ */
+
 article,
 aside,
-details,
-figcaption,
-figure,
 footer,
 header,
-main,
-menu,
 nav,
-section,
-summary {
-	display: block;
+section {
+  display: block;
 }
 
-audio,
-canvas,
-progress,
-video {
-	display: inline-block;
-	vertical-align: baseline;
+/**
+ * Correct the font size and margin on `h1` elements within `section` and
+ * `article` contexts in Chrome, Firefox, and Safari.
+ */
+
+h1 {
+  font-size: 2em;
+  margin: 0.67em 0;
 }
 
-audio:not([controls]) {
-	display: none;
-	height: 0;
+/* Grouping content
+   ========================================================================== */
+
+/**
+ * Add the correct display in IE 9-.
+ * 1. Add the correct display in IE.
+ */
+
+figcaption,
+figure,
+main { /* 1 */
+  display: block;
 }
 
-[hidden],
-template {
-	display: none;
+/**
+ * Add the correct margin in IE 8.
+ */
+
+figure {
+  margin: 1em 40px;
 }
 
-a {
-	background-color: transparent;
+/**
+ * 1. Add the correct box sizing in Firefox.
+ * 2. Show the overflow in Edge and IE.
+ */
+
+hr {
+  box-sizing: content-box; /* 1 */
+  height: 0; /* 1 */
+  overflow: visible; /* 2 */
 }
 
-a:active,
-a:hover {
-	outline: 0;
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+pre {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
 }
 
+/* Text-level semantics
+   ========================================================================== */
+
+/**
+ * 1. Remove the gray background on active links in IE 10.
+ * 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
+ */
+
+a {
+  background-color: transparent; /* 1 */
+  -webkit-text-decoration-skip: objects; /* 2 */
+}
+
+/**
+ * 1. Remove the bottom border in Chrome 57- and Firefox 39-.
+ * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
+ */
+
 abbr[title] {
-	border-bottom: 1px dotted;
+  border-bottom: none; /* 1 */
+  text-decoration: underline; /* 2 */
+  text-decoration: underline dotted; /* 2 */
 }
 
+/**
+ * Prevent the duplicate application of `bolder` by the next rule in Safari 6.
+ */
+
 b,
 strong {
-	font-weight: bold;
+  font-weight: inherit;
 }
 
-dfn {
-	font-style: italic;
+/**
+ * Add the correct font weight in Chrome, Edge, and Safari.
+ */
+
+b,
+strong {
+  font-weight: bolder;
 }
 
-h1 {
-	font-size: 2em;
-	margin: 0.67em 0;
+/**
+ * 1. Correct the inheritance and scaling of font size in all browsers.
+ * 2. Correct the odd `em` font sizing in all browsers.
+ */
+
+code,
+kbd,
+samp {
+  font-family: monospace, monospace; /* 1 */
+  font-size: 1em; /* 2 */
+}
+
+/**
+ * Add the correct font style in Android 4.3-.
+ */
+
+dfn {
+  font-style: italic;
 }
 
+/**
+ * Add the correct background and color in IE 9-.
+ */
+
 mark {
-	background: #ff0;
-	color: #000;
+  background-color: #ff0;
+  color: #000;
 }
 
+/**
+ * Add the correct font size in all browsers.
+ */
+
 small {
-	font-size: 80%;
+  font-size: 80%;
 }
 
-sub,
-sup {
-	font-size: 75%;
-	line-height: 0;
-	position: relative;
-	vertical-align: baseline;
-}
+/**
+ * Prevent `sub` and `sup` elements from affecting the line height in
+ * all browsers.
+ */
 
+sub,
 sup {
-	top: -0.5em;
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
 }
 
 sub {
-	bottom: -0.25em;
+  bottom: -0.25em;
 }
 
-img {
-	border: 0;
+sup {
+  top: -0.5em;
 }
 
-svg:not(:root) {
-	overflow: hidden;
-}
+/* Embedded content
+   ========================================================================== */
 
-figure {
-	margin: 1em 40px;
+/**
+ * Add the correct display in IE 9-.
+ */
+
+audio,
+video {
+  display: inline-block;
 }
 
-hr {
-	box-sizing: content-box;
-	height: 0;
+/**
+ * Add the correct display in iOS 4-7.
+ */
+
+audio:not([controls]) {
+  display: none;
+  height: 0;
 }
 
-pre {
-	overflow: auto;
+/**
+ * Remove the border on images inside links in IE 10-.
+ */
+
+img {
+  border-style: none;
 }
 
-code,
-kbd,
-pre,
-samp {
-	font-family: monospace, monospace;
-	font-size: 1em;
+/**
+ * Hide the overflow in IE.
+ */
+
+svg:not(:root) {
+  overflow: hidden;
 }
 
+/* Forms
+   ========================================================================== */
+
+/**
+ * 1. Change the font styles in all browsers (opinionated).
+ * 2. Remove the margin in Firefox and Safari.
+ */
+
 button,
 input,
 optgroup,
 select,
 textarea {
-	color: inherit;
-	font: inherit;
-	margin: 0;
+  font-family: sans-serif; /* 1 */
+  font-size: 100%; /* 1 */
+  line-height: 1.15; /* 1 */
+  margin: 0; /* 2 */
 }
 
-button {
-	overflow: visible;
-}
+/**
+ * Show the overflow in IE.
+ * 1. Show the overflow in Edge.
+ */
 
 button,
-select {
-	text-transform: none;
+input { /* 1 */
+  overflow: visible;
 }
 
+/**
+ * Remove the inheritance of text transform in Edge, Firefox, and IE.
+ * 1. Remove the inheritance of text transform in Firefox.
+ */
+
 button,
-html input[type="button"],
-input[type="reset"],
-input[type="submit"] {
-	-webkit-appearance: button;
-	cursor: pointer;
+select { /* 1 */
+  text-transform: none;
 }
 
-button[disabled],
-html input[disabled] {
-	cursor: default;
+/**
+ * 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
+ *    controls in Android 4.
+ * 2. Correct the inability to style clickable types in iOS and Safari.
+ */
+
+button,
+html [type="button"], /* 1 */
+[type="reset"],
+[type="submit"] {
+  -webkit-appearance: button; /* 2 */
 }
 
+/**
+ * Remove the inner border and padding in Firefox.
+ */
+
 button::-moz-focus-inner,
-input::-moz-focus-inner {
-	border: 0;
-	padding: 0;
+[type="button"]::-moz-focus-inner,
+[type="reset"]::-moz-focus-inner,
+[type="submit"]::-moz-focus-inner {
+  border-style: none;
+  padding: 0;
 }
 
-input {
-	line-height: normal;
+/**
+ * Restore the focus styles unset by the previous rule.
+ */
+
+button:-moz-focusring,
+[type="button"]:-moz-focusring,
+[type="reset"]:-moz-focusring,
+[type="submit"]:-moz-focusring {
+  outline: 1px dotted ButtonText;
 }
 
-input[type="checkbox"],
-input[type="radio"] {
-	box-sizing: border-box;
-	padding: 0;
+/**
+ * Correct the padding in Firefox.
+ */
+
+fieldset {
+  padding: 0.35em 0.75em 0.625em;
 }
 
-input[type="number"]::-webkit-inner-spin-button,
-input[type="number"]::-webkit-outer-spin-button {
-	height: auto;
+/**
+ * 1. Correct the text wrapping in Edge and IE.
+ * 2. Correct the color inheritance from `fieldset` elements in IE.
+ * 3. Remove the padding so developers are not caught out when they zero out
+ *    `fieldset` elements in all browsers.
+ */
+
+legend {
+  box-sizing: border-box; /* 1 */
+  color: inherit; /* 2 */
+  display: table; /* 1 */
+  max-width: 100%; /* 1 */
+  padding: 0; /* 3 */
+  white-space: normal; /* 1 */
 }
 
-input[type="search"]::-webkit-search-cancel-button,
-input[type="search"]::-webkit-search-decoration {
-	-webkit-appearance: none;
+/**
+ * 1. Add the correct display in IE 9-.
+ * 2. Add the correct vertical alignment in Chrome, Firefox, and Opera.
+ */
+
+progress {
+  display: inline-block; /* 1 */
+  vertical-align: baseline; /* 2 */
 }
 
-fieldset {
-	border: 1px solid #c0c0c0;
-	margin: 0 2px;
-	padding: 0.35em 0.625em 0.75em;
+/**
+ * Remove the default vertical scrollbar in IE.
+ */
+
+textarea {
+  overflow: auto;
 }
 
-legend {
-	border: 0;
-	padding: 0;
+/**
+ * 1. Add the correct box sizing in IE 10-.
+ * 2. Remove the padding in IE 10-.
+ */
+
+[type="checkbox"],
+[type="radio"] {
+  box-sizing: border-box; /* 1 */
+  padding: 0; /* 2 */
 }
 
-textarea {
-	overflow: auto;
+/**
+ * Correct the cursor style of increment and decrement buttons in Chrome.
+ */
+
+[type="number"]::-webkit-inner-spin-button,
+[type="number"]::-webkit-outer-spin-button {
+  height: auto;
 }
 
-optgroup {
-	font-weight: bold;
+/**
+ * 1. Correct the odd appearance in Chrome and Safari.
+ * 2. Correct the outline style in Safari.
+ */
+
+[type="search"] {
+  -webkit-appearance: textfield; /* 1 */
+  outline-offset: -2px; /* 2 */
 }
 
-table {
-	border-collapse: collapse;
-	border-spacing: 0;
+/**
+ * Remove the inner padding and cancel buttons in Chrome and Safari on macOS.
+ */
+
+[type="search"]::-webkit-search-cancel-button,
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
 }
 
-td,
-th {
-	padding: 0;
+/**
+ * 1. Correct the inability to style clickable types in iOS and Safari.
+ * 2. Change font properties to `inherit` in Safari.
+ */
+
+::-webkit-file-upload-button {
+  -webkit-appearance: button; /* 1 */
+  font: inherit; /* 2 */
+}
+
+/* Interactive
+   ========================================================================== */
+
+/*
+ * Add the correct display in IE 9-.
+ * 1. Add the correct display in Edge, IE, and Firefox.
+ */
+
+details, /* 1 */
+menu {
+  display: block;
+}
+
+/*
+ * Add the correct display in all browsers.
+ */
+
+summary {
+  display: list-item;
+}
+
+/* Scripting
+   ========================================================================== */
+
+/**
+ * Add the correct display in IE 9-.
+ */
+
+canvas {
+  display: inline-block;
+}
+
+/**
+ * Add the correct display in IE.
+ */
+
+template {
+  display: none;
+}
+
+/* Hidden
+   ========================================================================== */
+
+/**
+ * Add the correct display in IE 10-.
+ */
+
+[hidden] {
+  display: none;
 }
 
 /*--------------------------------------------------------------