From f597e2fe949a1e18eb778b9a5bd102de88570555 Mon Sep 17 00:00:00 2001 From: Max Date: Thu, 18 May 2017 14:03:27 +0200 Subject: Initial commit. --- src/sass/bootstrap4/_reboot.scss | 347 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 347 insertions(+) create mode 100644 src/sass/bootstrap4/_reboot.scss (limited to 'src/sass/bootstrap4/_reboot.scss') diff --git a/src/sass/bootstrap4/_reboot.scss b/src/sass/bootstrap4/_reboot.scss new file mode 100644 index 0000000..a3e4175 --- /dev/null +++ b/src/sass/bootstrap4/_reboot.scss @@ -0,0 +1,347 @@ +// Reboot +// +// Global resets to common HTML elements and more for easier usage by Bootstrap. +// Adds additional rules on top of Normalize.css, including several overrides. + + +// Reset the box-sizing +// +// Change from `box-sizing: content-box` to `border-box` so that when you add +// `padding` or `border`s to an element, the overall declared `width` does not +// change. For example, `width: 100px;` will always be `100px` despite the +// `border: 10px solid red;` and `padding: 20px;`. +// +// Heads up! This reset may cause conflicts with some third-party widgets. For +// recommendations on resolving such conflicts, see +// http://getbootstrap.com/getting-started/#third-box-sizing. +// +// Credit: https://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/ + +html { + box-sizing: border-box; +} + +*, +*::before, +*::after { + box-sizing: inherit; +} + + +// Make viewport responsive +// +// @viewport is needed because IE 10+ doesn't honor in +// some cases. See http://timkadlec.com/2012/10/ie10-snap-mode-and-responsive-design/. +// Eventually @viewport will replace . It's been manually +// prefixed for forward-compatibility. +// +// However, `device-width` is broken on IE 10 on Windows (Phone) 8, +// (see http://timkadlec.com/2013/01/windows-phone-8-and-device-width/ and https://github.com/twbs/bootstrap/issues/10497) +// and the fix for that involves a snippet of JavaScript to sniff the user agent +// and apply some conditional CSS. +// +// See http://getbootstrap.com/getting-started/#support-ie10-width for the relevant hack. +// +// Wrap `@viewport` with `@at-root` for when folks do a nested import (e.g., +// `.class-name { @import "bootstrap"; }`). +// +// Includes future-proofed vendor prefixes as well. +@at-root { + @-moz-viewport { width: device-width; } + @-ms-viewport { width: device-width; } + @-o-viewport { width: device-width; } + @-webkit-viewport { width: device-width; } + @viewport { width: device-width; } +} + + +// +// Reset HTML, body, and more +// + +html { + // Sets a specific default `font-size` for user with `rem` type scales. + font-size: $font-size-root; + // Changes the default tap highlight to be completely transparent in iOS. + -webkit-tap-highlight-color: rgba(0,0,0,0); +} + +body { + // Make the `body` use the `font-size-root` + font-family: $font-family-base; + font-size: $font-size-base; + line-height: $line-height; + // Go easy on the eyes and use something other than `#000` for text + color: $body-color; + // By default, `` has no `background-color` so we set one as a best practice. + background-color: $body-bg; +} + +// Suppress the focus outline on elements that cannot be accessed via keyboard. +// This prevents an unwanted focus outline from appearing around elements that +// might still respond to pointer events. +// +// Credit: https://github.com/suitcss/base +[tabindex="-1"]:focus { + outline: none !important; +} + + +// +// 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. +h1, h2, h3, h4, h5, h6 { + margin-top: 0; + margin-bottom: .5rem; +} + +// 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: 1rem; +} + +// Abbreviations and acronyms +abbr[title], +// Add data-* attribute to help out our tooltip plugin, per https://github.com/twbs/bootstrap/issues/5257 +abbr[data-original-title] { + cursor: help; + border-bottom: 1px dotted $abbr-border-color; +} + +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; +} + + +// +// Links +// + +a { + color: $link-color; + text-decoration: $link-decoration; + + @include hover-focus { + color: $link-hover-color; + text-decoration: $link-hover-decoration; + } + + &:focus { + @include tab-focus(); + } +} + + +// +// Code +// + +pre { + // Remove browser default top margin + margin-top: 0; + // Reset browser default of `1em` to use `rem`s + margin-bottom: 1rem; +} + + +// +// Figures +// + +figure { + // Normalize adds `margin` to `figure`s as browsers apply it inconsistently. + // We reset that to create a better flow in-page. + margin: 0 0 1rem; +} + + +// +// Images +// + +img { + // By default, ``s are `inline-block`. This assumes that, and vertically + // centers them. This won't apply should you reset them to `block` level. + vertical-align: middle; + // Note: ``s are deliberately not made responsive by default. + // For the rationale behind this, see the comments on the `.img-fluid` class. +} + + +// iOS "clickable elements" fix for role="button" +// +// Fixes "clickability" issue (and more generally, the firing of events such as focus as well) +// for traditionally non-focusable elements with role="button" +// see https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile + +[role="button"] { + cursor: pointer; +} + + +// Avoid 300ms click delay on touch devices that support the `touch-action` CSS property. +// +// In particular, unlike most other browsers, IE11+Edge on Windows 10 on touch devices and IE Mobile 10-11 +// DON'T remove the click delay when `` is present. +// However, they DO support removing the click delay via `touch-action: manipulation`. +// See: +// * http://v4-alpha.getbootstrap.com/content/reboot/#click-delay-optimization-for-touch +// * http://caniuse.com/#feat=css-touch-action +// * http://patrickhlauke.github.io/touch/tests/results/#suppressing-300ms-delay + +a, +area, +button, +[role="button"], +input, +label, +select, +summary, +textarea { + touch-action: manipulation; +} + + +// +// Tables +// + +table { + // Reset for nesting within parents with `background-color`. + background-color: $table-bg; +} + +caption { + padding-top: $table-cell-padding; + padding-bottom: $table-cell-padding; + color: $text-muted; + text-align: left; + caption-side: bottom; +} + +th { + // Centered by default, but left-align-ed to match the `td`s below. + text-align: left; +} + + +// +// Forms +// + +label { + // Allow labels to use `margin` for spacing. + display: inline-block; + margin-bottom: .5rem; +} + +// 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; +} + +input, +button, +select, +textarea { + // Remove all `margin`s so our classes don't have to do it themselves. + margin: 0; + // Normalize includes `font: inherit;`, so `font-family`. `font-size`, etc are + // properly inherited. However, `line-height` isn't addressed there. Using this + // ensures we don't need to unnecessarily redeclare the global font stack. + line-height: inherit; + // iOS adds rounded borders by default + border-radius: 0; +} + +textarea { + // Textareas should really only resize vertically so they don't break their (horizontal) containers. + resize: vertical; +} + +fieldset { + // Chrome and Firefox set a `min-width: min-content;` on fieldsets, + // so we reset that to ensure it behaves more like a standard block element. + // See https://github.com/twbs/bootstrap/issues/12359. + min-width: 0; + // Reset the default outline behavior of fieldsets so they don't affect page layout. + padding: 0; + margin: 0; + border: 0; +} + +legend { + // Reset the entire legend element to match the `fieldset` + display: block; + width: 100%; + padding: 0; + margin-bottom: .5rem; + font-size: 1.5rem; + line-height: inherit; +// border: 0; +} + +input[type="search"] { + // Undo Normalize's default here to match our global overrides. + box-sizing: inherit; + // 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. + -webkit-appearance: none; +} + +// todo: needed? +output { + display: inline-block; +// font-size: $font-size-base; +// line-height: $line-height; +// color: $input-color; +} + +// Always hide an element with the `hidden` HTML attribute (from PureCSS). +[hidden] { + display: none !important; +} -- cgit v1.2.3