Improve code readability

assets/_scss/_reset.scss

@@ -9,12 +9,15 @@ html {
   box-sizing: border-box;
   background-color: $background-color;
   font-size: 15px;
+
   @include breakpoint($medium) {
     font-size: 16px;
   }
+
   @include breakpoint($large) {
     font-size: 18px;
   }
+
   -webkit-text-size-adjust: 100%;
   -ms-text-size-adjust: 100%;
 }
@@ -89,9 +92,11 @@ sup {
   line-height: 0;
   vertical-align: baseline;
 }
+
 sup {
   top: -0.5em;
 }
+
 sub {
   bottom: -0.25em;
 }
@@ -126,16 +131,19 @@ textarea {
   font-size: 100%;
   vertical-align: middle;
 }
+
 button,
 input {
   *overflow: visible; // inner spacing ie IE6/7
   line-height: normal; // FF3/4 have !important on line-height in UA stylesheet
 }
+
 button::-moz-focus-inner,
 input::-moz-focus-inner { // inner padding and border oddities in FF3/4
   padding: 0;
   border: 0;
 }
+
 button,
 html input[type="button"], // avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` and `video` controls
 input[type="reset"],
@@ -143,6 +151,7 @@ input[type="submit"] {
     -webkit-appearance: button; // corrects inability to style clickable `input` types in iOS
     cursor: pointer; // improves usability and consistency of cursor style between image-type `input` and others
 }
+
 label,
 select,
 button,
@@ -153,15 +162,18 @@ input[type="radio"],
 input[type="checkbox"] {
     cursor: pointer; // improves usability and consistency of cursor style between image-type `input` and others
 }
+
 input[type="search"] { // Appearance in Safari/Chrome
   box-sizing: content-box;
   -webkit-appearance: textfield;
 }
+
 input[type="search"]::-webkit-search-decoration,
 input[type="search"]::-webkit-search-cancel-button {
   -webkit-appearance: none; // inner-padding issues in Chrome OSX, Safari 5
 }
+
 textarea {
   overflow: auto; // remove vertical scrollbar in IE6-9
   vertical-align: top; // readability and alignment cross-browser
-}
+}