css初始化

/*
    TODO will need to remove settings on HTML since we can't namespace it.
    TODO with the prefix, should I group by selector or property for weight savings?
*/
html{
    color:#000;
    background:#FFF;
}
/*
    TODO remove settings on BODY since we can't namespace it.
*/
/*
    TODO test putting a class on HEAD.
        - Fails on FF.
*/
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
textarea,
p,
blockquote,
th,
td {
    margin:0;
    padding:0;
}
table {
    border-collapse:collapse;
    border-spacing:0;
}
fieldset,
img {
    border:0;
}
/*
    TODO think about hanlding inheritence differently, maybe letting IE6 fail a bit...
*/
address,
caption,
cite,
code,
dfn,
em,
strong,
th,
var {
    font-style:normal;
    font-weight:normal;
}

ol,
ul {
    list-style:none;
}

caption,
th {
    text-align:left;
}
h1,
h2,
h3,
h4,
h5,
h6 {
    font-size:100%;
    font-weight:normal;
}
q:before,
q:after {
    content:'';
}
abbr,
acronym {
    border:0;
    font-variant:normal;
}
/* to preserve line-height and selector appearance */
sup {
    vertical-align:text-top;
}
sub {
    vertical-align:text-bottom;
}
input,
textarea,
select {
    font-family:inherit;
    font-size:inherit;
    font-weight:inherit;
    *font-size:100%; /*to enable resizing for IE*/
}
/*because legend doesn't inherit in IE */
legend {
    color:#000;
}

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 ,textarea,input { margin:0; padding:0;  }
address,cite,dfn,em,var, i {font-style:normal;}
body {font-size: 16px; line-height: 1.5; font-family:'Microsoft Yahei','simsun','arial','tahoma';  color: #222; background: #eee; }
table { border-collapse:collapse; border-spacing:0; }
h1, h2, h3, h4, h5, h6, th { font-size: 100%; font-weight: normal; }
button,input,select,textarea{font-size:100%;}
fieldset,img{border:0;}
a { text-decoration: none; color: #666; background: none }
ul, ol, li {list-style: none;}
:focus{ outline:none;}
.clearfix{ clear: both; content: ""; display: block; overflow: hidden }
.fl{ float: left; }
.fr{float: right;}