理念：清除和重置是紧密不可分的
特色：1.适应中文 2.基于最新主流浏览器
/* 清除内外边距 */
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote,
dl, dt, dd, ul, ol, li,
pre,
fieldset, lengend, button, input, textarea, /* form elements 表单元素 */
th, td {
margin: 0;
padding: 0;
}
/* 设置默认字体 */
body,
button, input, select, textarea { /* for ie */
/*font: 12px/1 Tahoma, Helvetica, Arial, "宋体", sans-serif;*/
font: 12px/1 Tahoma, Helvetica, Arial, "\5b8b\4f53", sans-serif;
}
h1 { font-size: 18px; /* 18px / 12px =
1.5 */ }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
h4, h5, h6 { font-size: 100%; }
address, cite, dfn, em, var { font-style: normal; }
code, kbd, pre, samp, tt { font-family: "Courier New", Courier, monospace; } small { font-size: 12px; }
/* 重置列表元素 */
ul, ol { list-style: none; }
/* 重置文本格式元素 */
a { text-decoration: none; }
a:hover { text-decoration: underline; }
/*重置结束*/