Bootstrap/scss/_normalize.scss

/*! normalize.css v4.2.0 | MIT License | github.com/necolas/normalize.css */

//
// 1. Change the default font family in all browsers (opinionated).
// 2. Correct the line height in all browsers.
// 3. Prevent adjustments of font size after orientation changes in IE and iOS.
//

html {
  font-family: sans-serif; // 1
  line-height: 1.15; // 2
  -ms-text-size-adjust: 100%; // 3
  -webkit-text-size-adjust: 100%; // 3
}

//
// Remove the margin in all browsers (opinionated).
//

body {
  margin: 0;
}

// HTML5 display definitions
// ==========================================================================

//
// Add the correct display in IE 9-.
// 1. Add the correct display in Edge, IE, and Firefox.
// 2. Add the correct display in IE.
//

article,
aside,
details, // 1
figcaption,
figure,
footer,
header,
main, // 2
menu,
nav,
section,
summary { // 1
  display: block;
}

//
// Add the correct display in IE 9-.
//

audio,
canvas,
progress,
video {
  display: inline-block;
}

//
// Add the correct display in iOS 4-7.
//

audio:not([controls]) {
  display: none;
  height: 0;
}

//
// Add the correct vertical alignment in Chrome, Firefox, and Opera.
//

progress {
  vertical-align: baseline;
}

//
// Add the correct display in IE 10-.
// 1. Add the correct display in IE.
//

template, // 1
[hidden] {
  display: none;
}

// Links
// ==========================================================================

//
// 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
}

//
// Remove the outline on focused links when they are also active or hovered
// in all browsers (opinionated).
//

a:active,
a:hover {
  outline-width: 0;
}

// Text-level semantics
// ==========================================================================

//
// 1. Remove the bottom border in Firefox 39-.
// 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
//

abbr[title] {
  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: inherit;
}

//
// Add the correct font weight in Chrome, Edge, and Safari.
//

b,
strong {
  font-weight: bolder;
}

//
// Add the correct font style in Android 4.3-.
//

dfn {
  font-style: italic;
}

//
// 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;
}

//
// Add the correct background and color in IE 9-.
//

mark {
  background-color: #ff0;
  color: #000;
}

//
// Add the correct font size in all browsers.
//

small {
  font-size: 80%;
}

//
// Prevent `sub` and `sup` elements from affecting the line height in
// all browsers.
//

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

// Embedded content
// ==========================================================================

//
// Remove the border on images inside links in IE 10-.
//

img {
  border-style: none;
}

//
// Hide the overflow in IE.
//

svg:not(:root) {
  overflow: hidden;
}

// Grouping content
// ==========================================================================

//
// 1. Correct the inheritance and scaling of font size in all browsers.
// 2. Correct the odd `em` font sizing in all browsers.
//

code,
kbd,
pre,
samp {
  font-family: monospace, monospace; // 1
  font-size: 1em; // 2
}

//
// Add the correct margin in IE 8.
//

figure {
  margin: 1em 40px;
}

//
// 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
}

// Forms
// ==========================================================================

//
// 1. Change font properties to `inherit` in all browsers (opinionated).
// 2. Remove the margin in Firefox and Safari.
//

button,
input,
optgroup,
select,
textarea {
  font: inherit; // 1
  margin: 0; // 2
}

//
// Restore the font weight unset by the previous rule.
//

optgroup {
  font-weight: $font-weight-bold;
}

//
// Show the overflow in IE.
// 1. Show the overflow in Edge.
//

button,
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,
select { // 1
  text-transform: none;
}

//
// 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,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

//
// 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;
}

//
// Change the border, margin, and padding in all browsers (opinionated).
//

fieldset {
  border: 1px solid #c0c0c0;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}

//
// 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
}

//
// Remove the default vertical scrollbar in IE.
//

textarea {
  overflow: auto;
}

//
// 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
}

//
// 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;
}

//
// 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
}

//
// Remove the inner padding and cancel buttons in Chrome and Safari on OS X.
//

[type="search"]::-webkit-search-cancel-button,
[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

//
// Correct the text style of placeholders in Chrome, Edge, and Safari.
//

::-webkit-input-placeholder {
  color: inherit;
  opacity: 0.54;
}

//
// 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
}