// 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 // // 1. Change from `box-sizing: content-box` so that `width` is not affected by `padding` or `border`. // 2. Change the default font family in all browsers. // 3. Correct the line height in all browsers. // 4. Prevent adjustments of font size after orientation changes in IE on Windows Phone and in iOS. // 5. Change the default tap highlight to be completely transparent in iOS. *, *::before, *::after { box-sizing: border-box; // 1 } html { font-family: sans-serif; // 2 line-height: 1.15; // 3 -webkit-text-size-adjust: 100%; // 4 -webkit-tap-highlight-color: rgba($black, 0); // 5 } // Shim for "new" HTML5 structural elements to display correctly (IE10, older browsers) // TODO: remove in v5 // stylelint-disable-next-line selector-list-comma-newline-after article, aside, figcaption, figure, footer, header, hgroup, main, nav, section { display: block; } // Body // // 1. Remove the margin in all browsers. // 2. As a best practice, apply a default `background-color`. // 3. Set an explicit initial text-align value so that we can later use // the `inherit` value on things like `` elements. body { margin: 0; // 1 font-family: $font-family-base; @include font-size($font-size-base); font-weight: $font-weight-base; line-height: $line-height-base; color: $body-color; text-align: left; // 3 background-color: $body-bg; // 2 -webkit-text-size-adjust: 100%; -webkit-font-feature-settings: 'kern' 1; -moz-font-feature-settings: 'kern' 1; -o-font-feature-settings: 'kern' 1; font-feature-settings: 'kern' 1; font-kerning: normal; } // 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. 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 } // // Typography // // 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. // stylelint-disable-next-line selector-list-comma-newline-after h1, h2, h3, h4, h5, h6 { margin-top: 0; margin-bottom: $headings-margin-bottom; } // 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. Remove the bottom border in Firefox 39-. // 5. 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 border-bottom: 0; // 4 text-decoration-skip-ink: none; // 5 } address { margin-bottom: 1rem; font-style: normal; line-height: inherit; } 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; } dd { margin-bottom: .5rem; margin-left: 0; // Undo browser default } blockquote { margin: 0 0 1rem; } b, strong { font-weight: $font-weight-bolder; // Add the correct font weight in Chrome, Edge, and Safari } small { @include font-size(80%); // Add the correct font size in all browsers } // // Prevent `sub` and `sup` elements from affecting the line height in // all browsers. // sub, sup { position: relative; @include font-size(75%); line-height: 0; vertical-align: baseline; } sub { bottom: -.25em; } sup { top: -.5em; } // // Links // a { color: $link-color; text-decoration: $link-decoration; background-color: transparent; // Remove the gray background on active links in IE 10. @include 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]):not([class]) { color: inherit; text-decoration: none; @include hover() { color: inherit; text-decoration: none; } } // // Code // pre, code, kbd, samp { font-family: $font-family-monospace; @include font-size(1em); // Correct the odd `em` font sizing in all browsers. } pre { // Remove browser default top margin margin-top: 0; // Reset browser default of `1em` to use `rem`s margin-bottom: 1rem; // Don't allow content to break outside overflow: auto; // Disable auto-hiding scrollbar in IE & legacy Edge to avoid overlap, // making it impossible to interact with the content -ms-overflow-style: scrollbar; } // // Figures // figure { // Apply a consistent margin strategy (matches our type styles). margin: 0 0 1rem; } // // Images and content // img { vertical-align: middle; border-style: none; // Remove the border on images inside links in IE 10-. } svg { // Workaround for the SVG overflow bug in IE10/11 is still required. // See https://github.com/twbs/bootstrap/issues/26878 overflow: hidden; vertical-align: middle; } // // Tables // table { border-collapse: collapse; // Prevent double borders } caption { padding-top: $table-cell-padding; padding-bottom: $table-cell-padding; color: $table-caption-color; text-align: left; caption-side: bottom; } // 1. Removes font-weight bold by inheriting // 2. Matches default `` 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 } // // Forms // label { // Allow labels to use `margin` for spacing. display: inline-block; margin-bottom: $label-margin-bottom; } // Remove the default `border-radius` that macOS Chrome adds. // // Details at 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; } input, button, select, optgroup, textarea { margin: 0; // Remove the margin in Firefox and Safari font-family: inherit; @include font-size(inherit); line-height: inherit; } button, input { overflow: visible; // Show the overflow in Edge } button, select { text-transform: none; // Remove the inheritance of text transform in Firefox } // Set the cursor for non-`