458 lines
7.3 KiB
SCSS
458 lines
7.3 KiB
SCSS
/*
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* 保护有用的浏览器默认样式而不是完全去掉它们
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* 一般化的样式：为大部分HTML元素提供
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* 修复浏览器自身的bug并保证各浏览器的一致性
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* 优化CSS可用性：用一些小技巧
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* 解释代码：用注释和详细的文档来
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*/
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//使html占用整个屏幕然后设置触摸操作，以避免触摸延迟在移动IE
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//2、在IE和iOS中，在方向更改后，防止调整字体大小。
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html {
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width: 100%;
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height: 100%;
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-ms-touch-action: manipulation;
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touch-action: manipulation;
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-ms-text-size-adjust: 100%; // 2
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-webkit-text-size-adjust: 100%; // 2
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}
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/*
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* 使body占据整个屏幕删除body边距，因此布局容器不会导致额外的溢出。
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* 去掉默认的margin
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*/
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body {
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margin: 0;
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width: 100%;
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height: 100%;
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}
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/*
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* 主显示屏复位为IE支持
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* Source: http://weblog.west-wind.com/posts/2015/Jan/12/main-HTML5-Tag-not-working-in-Internet-Explorer-91011
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*/
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main {
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display: block;
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}
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/*
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* 对具有hidden属性的元素不应用显示。
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* IE 9 and 10 support.
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*/
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*[hidden] {
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display: none !important;
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}
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*, :after, :before {
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box-sizing: border-box;
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}
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// HTML5 display definitions
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// ==========================================================================
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//
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// Add the correct display in IE 9-.
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// 1. Add the correct display in Edge, IE, and Firefox.
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// 2. Add the correct display in IE.
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//
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article,
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aside,
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details, // 1
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figcaption,
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figure,
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footer,
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header,
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main, // 2
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menu,
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nav,
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section,
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summary { // 1
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display: block;
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}
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//
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// Add the correct display in IE 9-.
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//
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audio,
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canvas,
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progress,
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video {
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display: inline-block;
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}
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//
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// Add the correct display in iOS 4-7.
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//
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audio:not([controls]) {
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display: none;
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height: 0;
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}
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//
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// Add the correct vertical alignment in Chrome, Firefox, and Opera.
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//
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progress {
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vertical-align: baseline;
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}
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//
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// Add the correct display in IE 10-.
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// 1. Add the correct display in IE.
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//
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template, // 2
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[hidden] {
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display: none;
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}
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// Links
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// ==========================================================================
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//
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// Remove the gray background on active links in IE 10.
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//
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a {
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background-color: transparent;
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}
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//
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// Remove the outline on focused links when they are also active or hovered
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// in all browsers (opinionated).
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//
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a:active,
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a:hover {
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outline-width: 0;
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}
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// Text-level semantics
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// ==========================================================================
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//
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// 1. Remove the bottom border in Firefox 39-.
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// 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
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//
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abbr[title] {
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border-bottom: none; // 1
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text-decoration: underline; // 2
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text-decoration: underline dotted; // 2
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}
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//
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// Prevent the duplicate application of `bolder` by the next rule in Safari 6.
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//
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b,
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strong {
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font-weight: inherit;
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}
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//
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// Add the correct font weight in Chrome, Edge, and Safari.
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//
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b,
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strong {
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font-weight: bolder;
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}
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//
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// Add the correct font style in Android 4.3-.
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//
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dfn {
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font-style: italic;
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}
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//
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// Correct the font size and margin on `h1` elements within `section` and
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// `article` contexts in Chrome, Firefox, and Safari.
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//
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h1 {
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font-size: 2em;
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margin: 0.67em 0;
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}
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//
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// Add the correct background and color in IE 9-.
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//
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mark {
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background-color: #ff0;
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color: #000;
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}
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//
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// Add the correct font size in all browsers.
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//
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small {
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font-size: 80%;
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}
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//
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// Prevent `sub` and `sup` elements from affecting the line height in
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// all browsers.
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//
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sub,
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sup {
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font-size: 75%;
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line-height: 0;
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position: relative;
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vertical-align: baseline;
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}
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sub {
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bottom: -0.25em;
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}
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sup {
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top: -0.5em;
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}
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// Embedded content
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// ==========================================================================
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//
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// Remove the border on images inside links in IE 10-.
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//
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img {
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border-style: none;
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}
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//
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// Hide the overflow in IE.
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//
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svg:not(:root) {
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overflow: hidden;
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}
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// Grouping content
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// ==========================================================================
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//
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// 1. Correct the inheritance and scaling of font size in all browsers.
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// 2. Correct the odd `em` font sizing in all browsers.
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//
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code,
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kbd,
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pre,
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samp {
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font-family: monospace, monospace; // 1
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font-size: 1em; // 2
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}
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//
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// Add the correct margin in IE 8.
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//
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figure {
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margin: 1em 40px;
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}
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//
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// 1. Add the correct box sizing in Firefox.
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// 2. Show the overflow in Edge and IE.
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//
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hr {
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box-sizing: content-box; // 1
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height: 0; // 1
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overflow: visible; // 2
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}
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// Forms
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// ==========================================================================
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//
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// Change font properties to `inherit` in all browsers (opinionated).
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//
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button,
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input,
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select,
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textarea {
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font: inherit;
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}
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//
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// Restore the font weight unset by the previous rule.
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//
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optgroup {
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font-weight: bold;
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}
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//
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// Show the overflow in IE.
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// 1. Show the overflow in Edge.
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// 2. Show the overflow in Edge, Firefox, and IE.
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//
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button,
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input, // 1
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select { // 2
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overflow: visible;
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}
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//
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// Remove the margin in Safari.
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// 1. Remove the margin in Firefox and Safari.
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//
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button,
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input,
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select,
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textarea { // 1
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margin: 0;
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}
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//
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// Remove the inheritence of text transform in Edge, Firefox, and IE.
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// 1. Remove the inheritence of text transform in Firefox.
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//
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button,
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select { // 1
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text-transform: none;
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}
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//
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// Change the cursor in all browsers (opinionated).
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//
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button,
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[type="button"],
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[type="reset"],
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[type="submit"] {
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cursor: pointer;
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}
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//
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// Restore the default cursor to disabled elements unset by the previous rule.
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//
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[disabled] {
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cursor: default;
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}
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//
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// 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
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// controls in Android 4.
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// 2. Correct the inability to style clickable types in iOS.
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//
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button,
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html [type="button"], // 1
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[type="reset"],
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[type="submit"] {
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-webkit-appearance: button; // 2
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}
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//
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// Remove the inner border and padding in Firefox.
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//
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button::-moz-focus-inner,
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input::-moz-focus-inner {
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border: 0;
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padding: 0;
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}
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//
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// Restore the focus styles unset by the previous rule.
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//
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button:-moz-focusring,
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input:-moz-focusring {
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outline: 1px dotted ButtonText;
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}
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//
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// Change the border, margin, and padding in all browsers (opinionated).
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//
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fieldset {
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border: 1px solid #c0c0c0;
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margin: 0 2px;
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padding: 0.35em 0.625em 0.75em;
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}
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//
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// 1. Correct the text wrapping in Edge and IE.
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// 2. Correct the color inheritance from `fieldset` elements in IE.
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// 3. Remove the padding so developers are not caught out when they zero out
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// `fieldset` elements in all browsers.
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//
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legend {
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box-sizing: border-box; // 1
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color: inherit; // 2
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display: table; // 1
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max-width: 100%; // 1
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padding: 0; // 3
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white-space: normal; // 1
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}
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//
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// Remove the default vertical scrollbar in IE.
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//
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textarea {
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overflow: auto;
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}
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//
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// 1. Add the correct box sizing in IE 10-.
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// 2. Remove the padding in IE 10-.
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//
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[type="checkbox"],
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[type="radio"] {
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box-sizing: border-box; // 1
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padding: 0; // 2
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}
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//
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// Correct the cursor style of increment and decrement buttons in Chrome.
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//
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[type="number"]::-webkit-inner-spin-button,
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[type="number"]::-webkit-outer-spin-button {
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height: auto;
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}
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//
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// Correct the odd appearance of search inputs in Chrome and Safari.
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//
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[type="search"] {
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-webkit-appearance: textfield;
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}
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//
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// Remove the inner padding and cancel buttons in Chrome on OS X and
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// Safari on OS X.
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//
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[type="search"]::-webkit-search-cancel-button,
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[type="search"]::-webkit-search-decoration {
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-webkit-appearance: none;
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}
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