CSS Reset的历史(一)
- sprite.evan - 黑客志当艺术家开始准备创作一幅新的画作时,他们不会先去拿镉红或是酞菁蓝的颜料,而是会首先准备好一张新的画布,为什么. 因为对于他们来说,首先需要确保新画布足够平展并且洁净. 许多Web设计师也喜欢使用CSS Reset来”准备“他们的浏览器画布,以确保他们的设计能够在不同的浏览器和系统下拥有同样的呈现. 这篇文章是关于CSS reset的系列文章的第一篇.
body,ul,li,p,h1,h2,h3,h4,h5,h6,img,br,hr,table,tr,td,dl,dt,dd,form { margin: 0; padding: 0; } body { font-family: Arial,"微软雅黑"; font-size: 12px; color: #434343; } .clear { clear: both; font-size: 0px; } ul,li { list-style: none; } img { border: none; } /*一般链接*/ a { text-decoration: none; color: #555; } a: hover { color: #3366ff; }
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { background: transparent; border: 0; margin: 0; padding: 0; vertical-align: baseline; font-size: 100%; font: inherit; -webkit-text-size-adjust: none; } body { line-height: 1; } table { border-collapse: collapse; border-spacing: 0; } object, :focus { outline: none; } article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section /* HTML 5 */ { display: block; } blockquote, q { quotes: none; } blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; } a img { border: none; } input,button,textarea,select,optgroup,option{ font-size: 100%; font: inherit; } .al { text-align: left; } .ar { text-align: right; } .ac { text-align: center; } .lc { margin: 0 auto; } .fl, .il .fl { float: left; } .fr, .il .fr { float: right; } .fc, .il .fc { float: none; clear: both; } .rel { position: relative; } .abs { position: absolute; } .il { list-style: none; } .il li { float: left; }
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { margin: 0; padding: 0; border: 0; outline: 0; font-weight: inherit; font-style: inherit; font-size: 100%; font-family: inherit; vertical-align: baseline; } : focus { outline: 0; } body { line-height: 1; color: black; background: white; } ol, ul { list-style: none; } table { border-collapse: separate; border-spacing: 0; } caption, th, td { text-align: left; font-weight: normal; } blockquote: before, blockquote: after, q: before, q: after { content: ""; } blockquote, q { quotes: "" ""; }
/*! normalize.css v3.0.1 | MIT License | git.io/normalize */ /** * 1. Set default font family to sans-serif. * 2. Prevent iOS text size adjust after orientation change, without disabling * user zoom. */ html { font-family: sans-serif; /* 1 */ -ms-text-size-adjust: 100%; /* 2 */ -webkit-text-size-adjust: 100%; /* 2 */ } /** * Remove default margin. */ body { margin: 0; } /* HTML5 display definitions ========================================================================== */ /** * Correct `block` display not defined for any HTML5 element in IE 8/9. * Correct `block` display not defined for `details` or `summary` in IE 10/11 and Firefox. * Correct `block` display not defined for `main` in IE 11. */ article, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section, summary { display: block; } /** * 1. Correct `inline-block` display not defined in IE 8/9. * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera. */ audio, canvas, progress, video { display: inline-block; /* 1 */ vertical-align: baseline; /* 2 */ } /** * Prevent modern browsers from displaying `audio` without controls. * Remove excess height in iOS 5 devices. */ audio:not([controls]) { display: none; height: 0; } /** * Address `[hidden]` styling not present in IE 8/9/10. * Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22. */ [hidden], template { display: none; } /* Links ========================================================================== */ /** * Remove the gray background color from active links in IE 10. */ a { background: transparent; } /** * Improve readability when focused and also mouse hovered in all browsers. */ a:active, a:hover { outline: 0; } /* Text-level semantics ========================================================================== */ /** * Address styling not present in IE 8/9/10/11, Safari, and Chrome. */ abbr[title] { border-bottom: 1px dotted; } /** * Address style set to `bolder` in Firefox 4+, Safari, and Chrome. */ b, strong { font-weight: bold; } /** * Address styling not present in Safari and Chrome. */ dfn { font-style: italic; } /** * Address variable `h1` font-size and margin within `section` and `article` * contexts in Firefox 4+, Safari, and Chrome. */ h1 { font-size: 2em; margin: 0.67em 0; } /** * Address styling not present in IE 8/9. */ mark { background: #ff0; color: #000; } /** * Address inconsistent and variable font size in all browsers. */ small { font-size: 80%; } /** * Prevent `sub` and `sup` affecting `line-height` in all browsers. */ sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; } sup { top: -0.5em; } sub { bottom: -0.25em; } /* Embedded content ========================================================================== */ /** * Remove border when inside `a` element in IE 8/9/10. */ img { border: 0; } /** * Correct overflow not hidden in IE 9/10/11. */ svg:not(:root) { overflow: hidden; } /* Grouping content ========================================================================== */ /** * Address margin not present in IE 8/9 and Safari. */ figure { margin: 1em 40px; } /** * Address differences between Firefox and other browsers. */ hr { -moz-box-sizing: content-box; box-sizing: content-box; height: 0; } /** * Contain overflow in all browsers. */ pre { overflow: auto; } /** * Address odd `em`-unit font size rendering in all browsers. */ code, kbd, pre, samp { font-family: monospace, monospace; font-size: 1em; } /* Forms ========================================================================== */ /** * Known limitation: by default, Chrome and Safari on OS X allow very limited * styling of `select`, unless a `border` property is set. */ /** * 1. Correct color not being inherited. * Known issue: affects color of disabled elements. * 2. Correct font properties not being inherited. * 3. Address margins set differently in Firefox 4+, Safari, and Chrome. */ button, input, optgroup, select, textarea { color: inherit; /* 1 */ font: inherit; /* 2 */ margin: 0; /* 3 */ } /** * Address `overflow` set to `hidden` in IE 8/9/10/11. */ button { overflow: visible; } /** * Address inconsistent `text-transform` inheritance for `button` and `select`. * All other form control elements do not inherit `text-transform` values. * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera. * Correct `select` style inheritance in Firefox. */ button, select { text-transform: none; } /** * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` * and `video` controls. * 2. Correct inability to style clickable `input` types in iOS. * 3. Improve usability and consistency of cursor style between image-type * `input` and others. */ button, html input[type="button"], /* 1 */ input[type="reset"], input[type="submit"] { -webkit-appearance: button; /* 2 */ cursor: pointer; /* 3 */ } /** * Re-set default cursor for disabled elements. */ button[disabled], html input[disabled] { cursor: default; } /** * Remove inner padding and border in Firefox 4+. */ button::-moz-focus-inner, input::-moz-focus-inner { border: 0; padding: 0; } /** * Address Firefox 4+ setting `line-height` on `input` using `!important` in * the UA stylesheet. */ input { line-height: normal; } /** * It's recommended that you don't attempt to style these elements. * Firefox's implementation doesn't respect box-sizing, padding, or width. * * 1. Address box sizing set to `content-box` in IE 8/9/10. * 2. Remove excess padding in IE 8/9/10. */ input[type="checkbox"], input[type="radio"] { box-sizing: border-box; /* 1 */ padding: 0; /* 2 */ } /** * Fix the cursor style for Chrome's increment/decrement buttons. For certain * `font-size` values of the `input`, it causes the cursor style of the * decrement button to change from `default` to `text`. */ input[type="number"]::-webkit-inner-spin-button, input[type="number"]::-webkit-outer-spin-button { height: auto; } /** * 1. Address `appearance` set to `searchfield` in Safari and Chrome. * 2. Address `box-sizing` set to `border-box` in Safari and Chrome * (include `-moz` to future-proof). */ input[type="search"] { -webkit-appearance: textfield; /* 1 */ -moz-box-sizing: content-box; -webkit-box-sizing: content-box; /* 2 */ box-sizing: content-box; } /** * Remove inner padding and search cancel button in Safari and Chrome on OS X. * Safari (but not Chrome) clips the cancel button when the search input has * padding (and `textfield` appearance). */ input[type="search"]::-webkit-search-cancel-button, input[type="search"]::-webkit-search-decoration { -webkit-appearance: none; } /** * Define consistent border, margin, and padding. */ fieldset { border: 1px solid #c0c0c0; margin: 0 2px; padding: 0.35em 0.625em 0.75em; } /** * 1. Correct `color` not being inherited in IE 8/9/10/11. * 2. Remove padding so people aren't caught out if they zero out fieldsets. */ legend { border: 0; /* 1 */ padding: 0; /* 2 */ } /** * Remove default vertical scrollbar in IE 8/9/10/11. */ textarea { overflow: auto; } /** * Don't inherit the `font-weight` (applied by a rule above). * NOTE: the default cannot safely be changed in Chrome and Safari on OS X. */ optgroup { font-weight: bold; } /* Tables ========================================================================== */ /** * Remove most spacing between table cells. */ table { border-collapse: collapse; border-spacing: 0; } td, th { padding: 0; }