HTML5 Reset Stylesheet

CSS reset是為了方便我們處理css layout跨瀏覽器平台，所面臨各家瀏覽器css預設值不一的情形，藉由css reset來解決此一問題。

然後，在現階段各家瀏覽器紛紛支援HTML5之下，當然，css reset也要有所調整以應該新增加的tag。

原始碼

/* 
html5doctor.com Reset Stylesheet
v1.4 
2009-07-27
Author: Richard Clark – http://richclarkdesign.com
*/

html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, dialog, figure, footer, header, 
hgroup, menu, nav, section,
time, mark, audio, video {
    margin:0;
    padding:0;
    border:0;
    outline:0;
    font-size:100%;
    vertical-align:baseline;
    background:transparent;
}

body {
    line-height:1;
}

article, aside, dialog, figure, footer, header, 
hgroup, nav, section { 
    display:block;
}

nav ul {
    list-style:none;
}

blockquote, q {
    quotes:none;
}

blockquote:before, blockquote:after,
q:before, q:after {
    content:”;
    content:none;
}

a {
    margin:0;
    padding:0;
    border:0;
    font-size:100%;
    vertical-align:baseline;
    background:transparent;
}

ins {
    background-color:#ff9;
    color:#000;
    text-decoration:none;
}

mark {
    background-color:#ff9;
    color:#000; 
    font-style:italic;
    font-weight:bold;
}

del {
    text-decoration: line-through;
}

abbr[title], dfn[title] {
    border-bottom:1px dotted #000;
    cursor:help;
}

table {
    border-collapse:collapse;
    border-spacing:0;
}

hr {
    display:block;
    height:1px;
    border:0;   
    border-top:1px solid #cccccc;
    margin:1em 0;
    padding:0;
}

input, select {
    vertical-align:middle;
}

基本概念

移除了在HTML5規範中已經不被使用的標籤，如<acronym>、<font>和<big>等；新增了一些元素，如<header>、<article>及<footer>，共且明確的指定這些塊級元素的樣式為block。

關於HTML5規範中新定義的元素，可以前往W3Schools中的HTML 5 Tag Reference查閱。

以上原始碼出自html5doctor。