My CSS framework - base.css (reset browser default style)

@charset "utf-8";
/*
@Name: base
@Function: Reset browser default style
*/
/* Prevent users from customizing the background color of the web page and add a method to allow users to customize the font*/
html {
color:black;
background:white;
}
/* Margins usually make the styles appear differently in different browsers */
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,hr,button,article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section {
margin:0;
padding:0;
}
/* Note that form elements do not inherit the parent font*/
body,button,input,select,textarea {
font:12px SimSun,tahoma,arial,sans-serif;
}
input,select,textarea {
font-size:100%;
}
/* Remove the margins of each Table cell and make their edges overlap*/
table {
border-collapse:collapse;
border-spacing:0;
}
/* IE bug fixed: th does not inherit text-align*/
th {
text-align:inherit;
}
/* Remove the default border */
fieldset,img {
border:none;
}
/* ie6 7 8(q) bug is displayed as inline performance*/
iframe {
display:block;
}
/* Remove the border of this element in Firefox*/
abbr,acronym {
border:none;
font-variant:normal;
}
/* consistent del style */
del {
text-decoration:line-through;
}
address,caption,cite,code,dfn,em,th,var {
font-style:normal;
font-weight:500;
}
/* Remove the mark before the list, li will inherit it*/
ol,ul {
list-style:none;
}
/* Alignment is the most important factor in typesetting, don't center everything*/
caption,th {
text-align:left;
}
/* From Yahoo, let the title be customized to adapt to multiple system applications*/
h1,h2,h3,h4,h5,h6 {
font-size:100%;
font-weight:500;
}
q:before,q:after {
content:'';
}
/* Unify superscript and subscript */
sub, sup {
font-size:75%;
line-height:0;
position:relative;
vertical-align:baseline;
}
sup {
top:-0.5em;
}
sub {
bottom:-0.25em;
}
/* Make the link underlined when hovering*/
a:hover {
text-decoration:underline;
}
/*Underline is not displayed by default to keep the page simple*/
ins,a {
text-decoration:none;
}
/* Remove the focus dot line in IE6 and 7*/
a:focus,*:focus {
outline:none;
}
/* Clear floats */
.clearfix:before,.clearfix:after {
content:"";
display:table;
}
.clearfix:after {
clear:both;
overflow:hidden;
}
.clearfix {
zoom:1; /* for IE6 IE7 */
}
.clear{
clear:both;
display:block;
overflow:hidden;
height:0;
line-height:0;
font-size:0;
}
/* Set display and hiding, usually used in conjunction with JS*/
.hide {
display:none !important;
visibility:hidden;
}
.block {
display:block !important;
}
/* Set inline to reduce bugs caused by floating */
.fl {
float:left;
display:inline;
}
.fr {
float:right;
display:inline;
}