// Helper function for the normalize() mixin.
@function _normalize-include($section, $exclude: null) {
// Initialize the global variables needed by this function.
@if not global_variable_exists(_normalize-include) {
$_normalize-include: () !global;
$_normalize-exclude: () !global;
}
// Since we are given 2 parameters, set the global variables.
@if $exclude != null {
$include: $section;
// Sass doesn't have static variables, so the work-around is to stuff these
// values into global variables so we can access them in future calls.
$_normalize-include: if(type-of($include) == 'list', $include, ($include)) !global;
$_normalize-exclude: if(type-of($exclude) == 'list', $exclude, ($exclude)) !global;
@return true;
}
// Check if $section is in the $include list.
@if index($_normalize-include, $section) {
@return true;
}
// If $include is set to (all), make sure $section is not in $exclude.
@else if not index($_normalize-exclude, $section) and index($_normalize-include, all) {
@return true;
}
@return false;
}
@mixin normalize($include: (all), $exclude: ()) {
// Initialize the helper function by passing it this mixin's parameters.
$init: _normalize-include($include, $exclude);
// If we've customized any font variables, we'll need extra properties.
@if $base-font-size != 16px
or $base-line-height != 24px
or $base-unit != 'em'
or $h1-font-size != 2 * $base-font-size
or $h2-font-size != 1.5 * $base-font-size
or $h3-font-size != 1.17 * $base-font-size
or $h4-font-size != 1 * $base-font-size
or $h5-font-size != 0.83 * $base-font-size
or $h6-font-size != 0.67 * $base-font-size {
$normalize-vertical-rhythm: true !global;
}
/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
@if _normalize-include(document) {
/* Document
========================================================================== */
/**
* 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 on Windows Phone and in iOS.
*/
html {
font-family: $base-font-family; /* 1 */
@if $normalize-vertical-rhythm {
// Correct old browser bug that prevented accessible resizing of text
// when root font-size is set with px or em.
font-size: ($base-font-size / 16px) * 100%;
line-height: ($base-line-height / $base-font-size) * 1em; /* 2 */
}
@else {
line-height: 1.15; /* 2 */
}
-ms-text-size-adjust: 100%; /* 3 */
-webkit-text-size-adjust: 100%; /* 3 */
}
}
@if _normalize-include(sections) {
/* Sections
========================================================================== */
/**
* Remove the margin in all browsers (opinionated).
*/
body {
margin: 0;
}
/**
* Add the correct display in IE 9-.
*/
article,
aside,
footer,
header,
nav,
section {
display: block;
}
/**
* Correct the font size and margin on `h1` elements within `section` and
* `article` contexts in Chrome, Firefox, and Safari.
*/
h1 {
@include normalize-font-size($h1-font-size);
@if $normalize-vertical-rhythm {
@include normalize-line-height($h1-font-size);
}
@if $normalize-vertical-rhythm {
/* Set 1 unit of vertical rhythm on the top and bottom margins. */
@include normalize-margin(1 0, $h1-font-size);
}
@else {
margin: 0.67em 0;
}
}
@if $normalize-vertical-rhythm {
h2 {
@include normalize-font-size($h2-font-size);
@include normalize-line-height($h2-font-size);
@include normalize-margin(1 0, $h2-font-size);
}
h3 {
@include normalize-font-size($h3-font-size);
@include normalize-line-height($h3-font-size);
@include normalize-margin(1 0, $h3-font-size);
}
h4 {
@include normalize-font-size($h4-font-size);
@include normalize-line-height($h4-font-size);
@include normalize-margin(1 0, $h4-font-size);
}
h5 {
@include normalize-font-size($h5-font-size);
@include normalize-line-height($h5-font-size);
@include normalize-margin(1 0, $h5-font-size);
}
h6 {
@include normalize-font-size($h6-font-size);
@include normalize-line-height($h6-font-size);
@include normalize-margin(1 0, $h6-font-size);
}
}
}
@if _normalize-include(grouping) {
/* Grouping content
========================================================================== */
@if $normalize-vertical-rhythm {
/**
* Set 1 unit of vertical rhythm on the top and bottom margin.
*/
blockquote {
@include normalize-margin(1 $indent-amount);
}
dl,
ol,
ul {
@include normalize-margin(1 0);
}
/**
* Turn off margins on nested lists.
*/
ol,
ul {
ol,
ul {
margin: 0;
}
}
dd {
margin: 0 0 0 $indent-amount;
}
ol,
ul {
padding: 0 0 0 $indent-amount;
}
}
/**
* Add the correct display in IE 9-.
*/
figcaption,
figure {
display: block;
}
/**
* Add the correct margin in IE 8.
*/
figure {
@if $normalize-vertical-rhythm {
@include normalize-margin(1 $indent-amount);
}
@else {
margin: 1em $indent-amount;
}
}
/**
* 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 */
}
/**
* Add the correct display in IE.
*/
main {
display: block;
}
@if $normalize-vertical-rhythm {
/**
* Set 1 unit of vertical rhythm on the top and bottom margin.
*/
p,
pre {
@include normalize-margin(1 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 */
}
}
@if _normalize-include(links) {
/* 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;
}
}
@if _normalize-include(text) {
/* 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;
}
/**
* 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-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;
}
}
@if _normalize-include(embedded) {
/* Embedded content
========================================================================== */
/**
* Add the correct display in IE 9-.
*/
audio,
video {
display: inline-block;
}
/**
* Add the correct display in iOS 4-7.
*/
audio:not([controls]) {
display: none;
height: 0;
}
/**
* Remove the border on images inside links in IE 10-.
*/
img {
border-style: none;
}
/**
* Hide the overflow in IE.
*/
svg:not(:root) {
overflow: hidden;
}
}
@if _normalize-include(forms) {
/* Forms
========================================================================== */
/**
* 1. Change the font styles in all browsers (opinionated).
* 2. Remove the margin in Firefox and Safari.
*/
button,
input,
optgroup,
select,
textarea {
font-family: $base-font-family; /* 1 */
font-size: 100%; /* 1 */
@if $normalize-vertical-rhythm {
line-height: ($base-line-height / $base-font-size) * 1em; /* 1 */
}
@else {
line-height: 1.15; /* 1 */
}
margin: 0; /* 2 */
}
/**
* Show the overflow in IE.
*/
button {
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 */
}
button,
[type="button"],
[type="reset"],
[type="submit"] {
/**
* Remove the inner border and padding in Firefox.
*/
&::-moz-focus-inner {
border-style: none;
padding: 0;
}
/**
* Restore the focus styles unset by the previous rule.
*/
&:-moz-focusring {
outline: 1px dotted ButtonText;
}
}
/**
* Show the overflow in Edge.
*/
input {
overflow: visible;
}
/**
* 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 macOS.
*/
&::-webkit-search-cancel-button,
&::-webkit-search-decoration {
-webkit-appearance: none;
}
}
/**
* 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 */
}
/**
* 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 */
display: table; /* 1 */
max-width: 100%; /* 1 */
padding: 0; /* 3 */
color: inherit; /* 2 */
white-space: normal; /* 1 */
}
/**
* 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 */
}
/**
* Remove the default vertical scrollbar in IE.
*/
textarea {
overflow: auto;
}
}
@if _normalize-include(interactive) {
/* Interactive
========================================================================== */
/*
* Add the correct display in Edge, IE, and Firefox.
*/
details {
display: block;
}
/*
* Add the correct display in all browsers.
*/
summary {
display: list-item;
}
/*
* Add the correct display in IE 9-.
*/
menu {
display: block;
@if $normalize-vertical-rhythm {
/*
* 1. Set 1 unit of vertical rhythm on the top and bottom margin.
* 2. Set consistent space for the list style image.
*/
@include normalize-margin(1 0); /* 1 */
padding: 0 0 0 $indent-amount; /* 2 */
/**
* Turn off margins on nested lists.
*/
menu &,
ol &,
ul & {
margin: 0;
}
}
}
}
@if _normalize-include(scripting) {
/* Scripting
========================================================================== */
/**
* Add the correct display in IE 9-.
*/
canvas {
display: inline-block;
}
/**
* Add the correct display in IE.
*/
template {
display: none;
}
}
@if _normalize-include(hidden) {
/* Hidden
========================================================================== */
/**
* Add the correct display in IE 10-.
*/
[hidden] {
display: none;
}
}
}
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