Proyectos de Subversion Moodle

// stylelint-disable declaration-no-important, selector-no-qualifying-type, property-no-vendor-prefix

// Reboot

//

// Normalization of HTML elements, manually forked from Normalize.css to remove

// styles targeting irrelevant browsers while applying new styles.

//

// Normalize is licensed MIT. https://github.com/necolas/normalize.css

// Document

//

// Change from `box-sizing: content-box` so that `width` is not affected by `padding` or `border`.

*,

*::before,

*::after {

  box-sizing: border-box;

}

// Root

//

// Ability to the value of the root font sizes, affecting the value of `rem`.

// null by default, thus nothing is generated.

:root {

  @if $font-size-root != null {

    @include font-size(var(--#{$prefix}root-font-size));

  }

  @if $enable-smooth-scroll {

    @media (prefers-reduced-motion: no-preference) {

      scroll-behavior: smooth;

    }

  }

}

// Body

//

// 1. Remove the margin in all browsers.

// 2. As a best practice, apply a default `background-color`.

// 3. Prevent adjustments of font size after orientation changes in iOS.

// 4. Change the default tap highlight to be completely transparent in iOS.

// scss-docs-start reboot-body-rules

body {

  margin: 0; // 1

  font-family: var(--#{$prefix}body-font-family);

  @include font-size(var(--#{$prefix}body-font-size));

  font-weight: var(--#{$prefix}body-font-weight);

  line-height: var(--#{$prefix}body-line-height);

  color: var(--#{$prefix}body-color);

  text-align: var(--#{$prefix}body-text-align);

  background-color: var(--#{$prefix}body-bg); // 2

  -webkit-text-size-adjust: 100%; // 3

  -webkit-tap-highlight-color: rgba($black, 0); // 4

}

// scss-docs-end reboot-body-rules

// Content grouping

//

// 1. Reset Firefox's gray color

hr {

  margin: $hr-margin-y 0;

  color: $hr-color; // 1

  border: 0;

  border-top: $hr-border-width solid $hr-border-color;

  opacity: $hr-opacity;

}

// Typography

//

// 1. Remove top margins from headings

//    By default, `<h1>`-`<h6>` all receive top and bottom margins. We nuke the top

//    margin for easier control within type scales as it avoids margin collapsing.

%heading {

  margin-top: 0; // 1

  margin-bottom: $headings-margin-bottom;

  font-family: $headings-font-family;

  font-style: $headings-font-style;

  font-weight: $headings-font-weight;

  line-height: $headings-line-height;

  color: var(--#{$prefix}heading-color);

}

h1 {

  @extend %heading;

  @include font-size($h1-font-size);

}

h2 {

  @extend %heading;

  @include font-size($h2-font-size);

}

h3 {

  @extend %heading;

  @include font-size($h3-font-size);

}

h4 {

  @extend %heading;

  @include font-size($h4-font-size);

}

h5 {

  @extend %heading;

  @include font-size($h5-font-size);

}

h6 {

  @extend %heading;

  @include font-size($h6-font-size);

}

// Reset margins on paragraphs

//

// Similarly, the top margin on `<p>`s get reset. However, we also reset the

// bottom margin to use `rem` units instead of `em`.

p {

  margin-top: 0;

  margin-bottom: $paragraph-margin-bottom;

}

// Abbreviations

//

// 1. Add the correct text decoration in Chrome, Edge, Opera, and Safari.

// 2. Add explicit cursor to indicate changed behavior.

// 3. Prevent the text-decoration to be skipped.

abbr[title] {

  text-decoration: underline dotted; // 1

  cursor: help; // 2

  text-decoration-skip-ink: none; // 3

}

// Address

address {

  margin-bottom: 1rem;

  font-style: normal;

  line-height: inherit;

}

// Lists

ol,

ul {

  padding-left: 2rem;

}

ol,

ul,

dl {

  margin-top: 0;

  margin-bottom: 1rem;

}

ol ol,

ul ul,

ol ul,

ul ol {

  margin-bottom: 0;

}

dt {

  font-weight: $dt-font-weight;

}

// 1. Undo browser default

dd {

  margin-bottom: .5rem;

  margin-left: 0; // 1

}

// Blockquote

blockquote {

  margin: 0 0 1rem;

}

// Strong

//

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

b,

strong {

  font-weight: $font-weight-bolder;

}

// Small

//

// Add the correct font size in all browsers

small {

  @include font-size($small-font-size);

}

// Mark

mark {

  padding: $mark-padding;

  color: var(--#{$prefix}highlight-color);

  background-color: var(--#{$prefix}highlight-bg);

}

// Sub and Sup

//

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

// all browsers.

sub,

sup {

  position: relative;

  @include font-size($sub-sup-font-size);

  line-height: 0;

  vertical-align: baseline;

}

sub { bottom: -.25em; }

sup { top: -.5em; }

// Links

a {

  color: rgba(var(--#{$prefix}link-color-rgb), var(--#{$prefix}link-opacity, 1));

  text-decoration: $link-decoration;

  &:hover {

    --#{$prefix}link-color-rgb: var(--#{$prefix}link-hover-color-rgb);

    text-decoration: $link-hover-decoration;

  }

}

// And undo these styles for placeholder links/named anchors (without href).

// It would be more straightforward to just use a[href] in previous block, but that

// causes specificity issues in many other styles that are too complex to fix.

// See https://github.com/twbs/bootstrap/issues/19402

a:not([href]):not([class]) {

  &,

  &:hover {

    color: inherit;

    text-decoration: none;

  }

}

// Code

pre,

code,

kbd,

samp {

  font-family: $font-family-code;

  @include font-size(1em); // Correct the odd `em` font sizing in all browsers.

}

// 1. Remove browser default top margin

// 2. Reset browser default of `1em` to use `rem`s

// 3. Don't allow content to break outside

pre {

  display: block;

  margin-top: 0; // 1

  margin-bottom: 1rem; // 2

  overflow: auto; // 3

  @include font-size($code-font-size);

  color: $pre-color;

  // Account for some code outputs that place code tags in pre tags

  code {

    @include font-size(inherit);

    color: inherit;

    word-break: normal;

  }

}

code {

  @include font-size($code-font-size);

  color: var(--#{$prefix}code-color);

  word-wrap: break-word;

  // Streamline the style when inside anchors to avoid broken underline and more

  a > & {

    color: inherit;

  }

}

kbd {

  padding: $kbd-padding-y $kbd-padding-x;

  @include font-size($kbd-font-size);

  color: $kbd-color;

  background-color: $kbd-bg;

  @include border-radius($border-radius-sm);

  kbd {

    padding: 0;

    @include font-size(1em);

    font-weight: $nested-kbd-font-weight;

  }

}

// Figures

//

// Apply a consistent margin strategy (matches our type styles).

figure {

  margin: 0 0 1rem;

}

// Images and content

img,

svg {

  vertical-align: middle;

}

// Tables

//

// Prevent double borders

table {

  caption-side: bottom;

  border-collapse: collapse;

}

caption {

  padding-top: $table-cell-padding-y;

  padding-bottom: $table-cell-padding-y;

  color: $table-caption-color;

  text-align: left;

}

// 1. Removes font-weight bold by inheriting

// 2. Matches default `<td>` alignment by inheriting `text-align`.

// 3. Fix alignment for Safari

th {

  font-weight: $table-th-font-weight; // 1

  text-align: inherit; // 2

  text-align: -webkit-match-parent; // 3

}

thead,

tbody,

tfoot,

tr,

td,

th {

  border-color: inherit;

  border-style: solid;

  border-width: 0;

}

// Forms

//

// 1. Allow labels to use `margin` for spacing.

label {

  display: inline-block; // 1

}

// Remove the default `border-radius` that macOS Chrome adds.

// See https://github.com/twbs/bootstrap/issues/24093

button {

  // stylelint-disable-next-line property-disallowed-list

  border-radius: 0;

}

// Explicitly remove focus outline in Chromium when it shouldn't be

// visible (e.g. as result of mouse click or touch tap). It already

// should be doing this automatically, but seems to currently be

// confused and applies its very visible two-tone outline anyway.

button:focus:not(:focus-visible) {

  outline: 0;

}

// 1. Remove the margin in Firefox and Safari

input,

button,

select,

optgroup,

textarea {

  margin: 0; // 1

  font-family: inherit;

  @include font-size(inherit);

  line-height: inherit;

}

// Remove the inheritance of text transform in Firefox

button,

select {

  text-transform: none;

}

// Set the cursor for non-`<button>` buttons

//

// Details at https://github.com/twbs/bootstrap/pull/30562

[role="button"] {

  cursor: pointer;

}

select {

  // Remove the inheritance of word-wrap in Safari.

  // See https://github.com/twbs/bootstrap/issues/24990

  word-wrap: normal;

  // Undo the opacity change from Chrome

  &:disabled {

    opacity: 1;

  }

}

// Remove the dropdown arrow only from text type inputs built with datalists in Chrome.

// See https://stackoverflow.com/a/54997118

[list]:not([type="date"]):not([type="datetime-local"]):not([type="month"]):not([type="week"]):not([type="time"])::-webkit-calendar-picker-indicator {

  display: none !important;

}

// 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.

// 3. Opinionated: add "hand" cursor to non-disabled button elements.

button,

[type="button"], // 1

[type="reset"],

[type="submit"] {

  -webkit-appearance: button; // 2

  @if $enable-button-pointers {

    &:not(:disabled) {

      cursor: pointer; // 3

    }

  }

}

// Remove inner border and padding from Firefox, but don't restore the outline like Normalize.

::-moz-focus-inner {

  padding: 0;

  border-style: none;

}

// 1. Textareas should really only resize vertically so they don't break their (horizontal) containers.

textarea {

  resize: vertical; // 1

}

// 1. Browsers set a default `min-width: min-content;` on fieldsets,

//    unlike e.g. `<div>`s, which have `min-width: 0;` by default.

//    So we reset that to ensure fieldsets behave more like a standard block element.

//    See https://github.com/twbs/bootstrap/issues/12359

//    and https://html.spec.whatwg.org/multipage/#the-fieldset-and-legend-elements

// 2. Reset the default outline behavior of fieldsets so they don't affect page layout.

fieldset {

  min-width: 0; // 1

  padding: 0; // 2

  margin: 0; // 2

  border: 0; // 2

}

// 1. By using `float: left`, the legend will behave like a block element.

//    This way the border of a fieldset wraps around the legend if present.

// 2. Fix wrapping bug.

//    See https://github.com/twbs/bootstrap/issues/29712

legend {

  float: left; // 1

  width: 100%;

  padding: 0;

  margin-bottom: $legend-margin-bottom;

  @include font-size($legend-font-size);

  font-weight: $legend-font-weight;

  line-height: inherit;

  + * {

    clear: left; // 2

  }

}

// Fix height of inputs with a type of datetime-local, date, month, week, or time

// See https://github.com/twbs/bootstrap/issues/18842

::-webkit-datetime-edit-fields-wrapper,

::-webkit-datetime-edit-text,

::-webkit-datetime-edit-minute,

::-webkit-datetime-edit-hour-field,

::-webkit-datetime-edit-day-field,

::-webkit-datetime-edit-month-field,

::-webkit-datetime-edit-year-field {

  padding: 0;

}

::-webkit-inner-spin-button {

  height: auto;

}

// 1. This overrides the extra rounded corners on search inputs in iOS so that our

//    `.form-control` class can properly style them. Note that this cannot simply

//    be added to `.form-control` as it's not specific enough. For details, see

//    https://github.com/twbs/bootstrap/issues/11586.

// 2. Correct the outline style in Safari.

[type="search"] {

  -webkit-appearance: textfield; // 1

  outline-offset: -2px; // 2

}

// 1. A few input types should stay LTR

// See https://rtlstyling.com/posts/rtl-styling#form-inputs

// 2. RTL only output

// See https://rtlcss.com/learn/usage-guide/control-directives/#raw

/* rtl:raw:

[type="tel"],

[type="url"],

[type="email"],

[type="number"] {

  direction: ltr;

}

*/

// Remove the inner padding in Chrome and Safari on macOS.

::-webkit-search-decoration {

  -webkit-appearance: none;

}

// Remove padding around color pickers in webkit browsers

::-webkit-color-swatch-wrapper {

  padding: 0;

}

// 1. Inherit font family and line height for file input buttons

// 2. Correct the inability to style clickable types in iOS and Safari.

::file-selector-button {

  font: inherit; // 1

  -webkit-appearance: button; // 2

}

// Correct element displays

output {

  display: inline-block;

}

// Remove border from iframe

iframe {

  border: 0;

}

// Summary

//

// 1. Add the correct display in all browsers

summary {

  display: list-item; // 1

  cursor: pointer;

}

// Progress

//

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

progress {

  vertical-align: baseline;

}

// Hidden attribute

//

// Always hide an element with the `hidden` HTML attribute.

[hidden] {

  display: none !important;

}