diff --git a/src/styles/_reboot.scss b/src/styles/_reboot.scss new file mode 100755 index 0000000..b1a2919 --- /dev/null +++ b/src/styles/_reboot.scss @@ -0,0 +1,563 @@ + +// stylelint-disable at-rule-no-vendor-prefix, 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; +} + +// 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 IE on Windows Phone and in iOS. +// 4. Change the default tap highlight to be completely transparent in iOS. +body { + margin: 0; // 1 + font-family: $font-family-base; + font-size: $font-size-base; + font-weight: $font-weight-base; + line-height: $line-height-base; + color: $body-color; + text-align: $body-text-align; + background-color: $body-bg; // 2 + -webkit-text-size-adjust: 100%; // 3 + -webkit-tap-highlight-color: rgba($black, 0); // 4 +} + +// Future-proof rule: in browsers that support :focus-visible, suppress the focus outline +// on elements that programmatically receive focus but wouldn't normally show a visible +// focus outline. In general, this would mean that the outline is only applied if the +// interaction that led to the element receiving programmatic focus was a keyboard interaction, +// or the browser has somehow determined that the user is primarily a keyboard user and/or +// wants focus outlines to always be presented. +// +// See https://developer.mozilla.org/en-US/docs/Web/CSS/:focus-visible +// and https://developer.paciellogroup.com/blog/2018/03/focus-visible-and-backwards-compatibility/ + +[tabindex="-1"]:focus:not(:focus-visible) { + outline: 0 !important; +} + + +// Content grouping +// +// 1. Reset Firefox's gray color +// 2. Set correct height and prevent the `size` attribute to make the `hr` look like an input field +// See https://www.w3schools.com/tags/tryit.asp?filename=tryhtml_hr_size + +hr { + margin: $hr-margin-y 0; + color: $hr-color; // 1 + background-color: currentColor; + border: 0; + opacity: $hr-opacity; +} + +hr:not([size]) { + height: $hr-height; // 2 +} + + +// Typography +// +// 1. Remove top margins from headings +// By default, `

`-`

` 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: $headings-color; +} + +h1 { + @extend %heading; + font-size: $h1-font-size; +} + +h2 { + @extend %heading; + font-size: $h2-font-size; +} + +h3 { + @extend %heading; + font-size: $h3-font-size; +} + +h4 { + @extend %heading; + font-size: $h4-font-size; +} + +h5 { + @extend %heading; + font-size: $h5-font-size; +} + +h6 { + @extend %heading; + font-size: $h6-font-size; +} + + +// Reset margins on paragraphs +// +// Similarly, the top margin on `

`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. Duplicate behavior to the data-* attribute for our tooltip plugin +// 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari. +// 3. Add explicit cursor to indicate changed behavior. +// 4. Prevent the text-decoration to be skipped. + +abbr[title], +abbr[data-original-title] { // 1 + text-decoration: underline; // 2 + text-decoration: underline dotted; // 2 + cursor: help; // 3 + text-decoration-skip-ink: none; // 4 +} + + +address { + margin-bottom: 1rem; + font-style: normal; + line-height: inherit; +} + +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 { + margin: 0 0 1rem; +} + +// Add the correct font weight in Chrome, Edge, and Safari + +b, +strong { + font-weight: $font-weight-bolder; +} + + +// Add the correct font size in all browsers + +small { + font-size: $small-font-size; +} + +// Prevent `sub` and `sup` elements from affecting the line height in +// all browsers. + +sub, +sup { + position: relative; + font-size: $sub-sup-font-size; + line-height: 0; + vertical-align: baseline; +} + +sub { bottom: -.25em; } +sup { top: -.5em; } + + +// Links + +a { + color: $link-color; + text-decoration: $link-decoration; + + &:hover { + color: $link-hover-color; + 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]) { + &, + &:hover { + color: inherit; + text-decoration: none; + } +} + + +// Code + +pre, +code, +kbd, +samp { + font-family: $font-family-monospace; + 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 + font-size: $code-font-size; + color: $pre-color; + + // Account for some code outputs that place code tags in pre tags + code { + font-size: inherit; + color: inherit; + word-break: normal; + } +} + +code { + font-size: $code-font-size; + color: $code-color; + word-wrap: break-word; + + // Streamline the style when inside anchors to avoid broken underline and more + a > & { + color: inherit; + } +} + + +// Figures + +// Apply a consistent margin strategy (matches our type styles). + +figure { + margin: 0 0 1rem; +} + + +// Images and content + +img { + vertical-align: middle; +} + +// 1. Workaround for the SVG overflow bug in IE 11 is still required. +// See https://github.com/twbs/bootstrap/issues/26878 + +svg { + overflow: hidden; // 1 + vertical-align: middle; +} + + +// Tables + +// Prevent double borders + +table { + border-collapse: collapse; +} + +caption { + padding-top: .5rem; + padding-bottom: .5rem; + color: $text-muted; + text-align: left; + caption-side: bottom; +} + +// Matches default `` alignment by inheriting from the ``, or the +// closest parent with a set `text-align`. + +th { + text-align: inherit; +} + + +// Forms + +// 1. Allow labels to use `margin` for spacing. + +label { + display: inline-block; // 1 + margin-bottom: .5rem; +} + +// Remove the default `border-radius` that macOS Chrome adds. +// +// Details at https://github.com/twbs/bootstrap/issues/24093 + +button { + // stylelint-disable-next-line property-blacklist + border-radius: 0; +} + +// Work around a Firefox/IE bug where the transparent `button` background +// results in a loss of the default `button` focus styles. +// +// Credit: https://github.com/suitcss/base/ + +button:focus { + outline: 1px dotted; + outline: 5px auto -webkit-focus-ring-color; +} + +// 1. Remove the margin in Firefox and Safari + +input, +button, +select, +optgroup, +textarea { + margin: 0; + font-family: inherit; + font-size: inherit; + line-height: inherit; +} + +// Show the overflow in Edge + +button, +input { + overflow: visible; +} + +// Remove the inheritance of text transform in Firefox + +button, +select { + text-transform: none; +} + +// Remove the inheritance of word-wrap in Safari. +// +// Details at https://github.com/twbs/bootstrap/issues/24990 + +select { + word-wrap: normal; +} + +// Remove the dropdown arrow in Chrome from inputs built with datalists. +// +// Source: https://stackoverflow.com/a/54997118 + +[list]::-webkit-calendar-picker-indicator { + display: 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. +// 3. Opinionated: add "hand" cursor to non-disabled button elements. + +button, +[type="button"], // 1 +[type="reset"], +[type="submit"] { + -webkit-appearance: button; // 2 + + @if $enable-pointer-cursor-for-buttons { + &: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; +} + + +// Remove the default appearance of temporal inputs to avoid a Mobile Safari +// bug where setting a custom line-height prevents text from being vertically +// centered within the input. +// See https://bugs.webkit.org/show_bug.cgi?id=139848 +// and https://github.com/twbs/bootstrap/issues/11266 + +input[type="date"], +input[type="time"], +input[type="datetime-local"], +input[type="month"] { + -webkit-appearance: textfield; +} + +// 1. Remove the default vertical scrollbar in IE. +// 2. Textareas should really only resize vertically so they don't break their (horizontal) containers. + +textarea { + overflow: auto; // 1 + resize: vertical; // 2 +} + +// 1. Browsers set a default `min-width: min-content;` on fieldsets, +// unlike e.g. `

`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 +// 2. Correct the color inheritance from `fieldset` elements in IE. +// 3. Correct the text wrapping in Edge and IE. + +legend { + float: left; // 1 + width: 100%; + padding: 0; + margin-bottom: $legend-margin-bottom; + font-size: $legend-font-size; + font-weight: $legend-font-weight; + line-height: inherit; + color: inherit; // 2 + white-space: normal; // 3 +} + + +mark { + padding: $mark-padding; + background-color: $mark-bg; +} + +// Add the correct vertical alignment in Chrome, Firefox, and Opera. + +progress { + vertical-align: baseline; +} + + +// 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 { + overflow: visible; + line-height: 0; +} + + +// 1. Correct the outline style in Safari. +// 2. 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. + +[type="search"] { + outline-offset: -2px; // 1 + -webkit-appearance: textfield; // 2 +} + +// 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. Change font properties to `inherit` in Safari. +// 2. Correct the inability to style clickable types in iOS and Safari. + +::-webkit-file-upload-button { + font: inherit; // 1 + -webkit-appearance: button; // 2 +} + +// Correct element displays + +output { + display: inline-block; +} + +// 1. Add the correct display in all browsers + +summary { + display: list-item; // 1 + cursor: pointer; +} + +// Add the correct display for template & main in IE 11 + +template { + display: none; +} + +main { + display: block; +} + +// Always hide an element with the `hidden` HTML attribute. + +[hidden] { + display: none !important; +} \ No newline at end of file