_normalize.scss

/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */

@import 'variables';
@import 'vertical-rhythm';

// If we've customized any font variables, we'll need extra properties.
@if $base-line-height != 24px
  or $base-unit != 'em'
  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
  or $indent-amount != 40px {
  $normalize-vertical-rhythm: true !global;
}

/* 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 {
  @if $base-font-family {
    /* Change the default font family in all browsers (opinionated). */
    font-family: $base-font-family;
  }
  @if $base-font-size != 16px or $normalize-vertical-rhythm {
    // Correct old browser bug that prevented accessible resizing of text
    // when root font-size is set with px or em.
    font-size: ($base-font-size / 16px) * 100%;
  }
  @if $normalize-vertical-rhythm {
    // Establish a vertical rhythm unit using $base-font-size and
    // $base-line-height variables.
    line-height: ($base-line-height / $base-font-size) * 1em; /* 1 */
  }
  @else {
    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;
}

/**
 * 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);
  }
}

/* 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.
 */

%monospace {
  font-family: monospace, monospace; /* 1 */
  font-size: 1em; /* 2 */
}

pre {
  @extend %monospace;
}

/* 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 */
}

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

/**
 * 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: 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;
}

code,
kbd,
samp {
  @extend %monospace;
}

/**
 * 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;
}

/* 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;
}

/* Forms
   ========================================================================== */

/**
 * Known issues:
 * - `select`:
 *   By default, Chrome on OS X and Safari on OS X allow very limited styling of
 *   select, unless a border property is set. The default font weight on
 *   optgroup elements cannot safely be changed in Chrome on OSX and Safari on
 *   OS X.
 * - `[type="checkbox"]`:
 *   It is recommended that you do not style checkbox and radio inputs as
 *   Firefox's implementation does not respect box-sizing, padding, or width.
 * - `[type="number"]`:
 *   Certain font size values applied to number inputs cause the cursor style of
 *   the decrement button to change from `default` to `text`.
 * - `[type="search"]`:
 *   The search input is not fully stylable by default. In Chrome and Safari on
 *   OSX/iOS you can't control `font`, `padding`, `border`, or `background`. In
 *   Chrome and Safari on Windows you can't control `border` properly. It will
 *   apply `border-width` but will only show a border color (which cannot be
 *   controlled) for the outer 1px of that border. Applying
 *   `-webkit-appearance: textfield` addresses these issues without removing the
 *   benefits of search inputs (e.g. showing past searches). Safari (but not
 *   Chrome) will clip the cancel button on when it has padding (and `textfield`
 *   appearance).
 * - `::placeholder`:
 *   In Edge, placeholders will disappear on `relative` or `absolute` positioned
 *   `<input>` elements if you use `opacity` less than `1` due to a
 *   [bug](https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/3901363/).
 */

/**
 * 1. Change the font styles in all browsers (opinionated).
 * 2. Remove the margin in Firefox and Safari.
 */

button,
input,
optgroup,
select,
textarea {
  @if $normalize-vertical-rhythm {
    @include normalize-line-height($base-font-size); /* 1 */
  }
  @else {
    line-height: 1.15; /* 1 */
  }
  font-family: if($base-font-family, $base-font-family, sans-serif); /* 1 */
  font-size: 100%; /* 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 */
}

/**
 * Correct the padding in Firefox.
 */

fieldset {
  padding: 0.35em 0.75em 0.625em;
}

/**
 * 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;
}

/* 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;
    }
  }
}

/* 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;
}