/** 娓呴櫎鍐呭杈硅窛 **/
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, /* structural elements 缁撴瀯鍏冪礌 */
dl, dt, dd, ul, ol, li, /* list elements 鍒楄〃鍏冪礌 */
pre, /* text formatting elements 鏂囨湰鏍煎紡鍏冪礌 */
form, fieldset, legend, button, input, textarea, /* form elements 琛ㄥ崟鍏冪礌 */
th, td /* table elements 琛ㄦ牸鍏冪礌 */ {
    margin: 0;
    padding: 0;
}
/** 璁剧疆榛樿瀛椾綋 **/
body,
button, input, select, textarea /* for ie */ {
}
h1, h2, h3, h4, h5, h6 { font-size: 100%; font-weight: normal;}
address, cite, dfn, em, var { font-style: normal; } /* 灏嗘枩浣撴壎姝� */
code, kbd, pre, samp { font-family: courier new, courier, monospace; } /* 缁熶竴绛夊瀛椾綋 */
small { font-size: 12px; } /* 灏忎簬 12px 鐨勪腑鏂囧緢闅鹃槄璇�, 璁� small 姝ｅ父鍖� */
/** 閲嶇疆鍒楄〃鍏冪礌 **/
ul{ list-style: none; }
ul, ol, li { list-style: none; }
/** 閲嶇疆鏂囨湰鏍煎紡鍏冪礌 **/
a { text-decoration: none; }
a:hover { text-decoration: underline; }
sup { vertical-align: text-top; } /* 閲嶇疆, 鍑忓皯瀵硅楂樼殑褰卞搷 */
sub { vertical-align: text-bottom; }
/** 閲嶇疆琛ㄥ崟鍏冪礌 **/
legend { color: #000; } /* for ie6 */
fieldset, img { border: 0; } /* img 鎼溅锛氳閾炬帴閲岀殑 img 鏃犺竟妗� */
button, input, select, textarea { font-size: 100%; } /* 浣垮緱琛ㄥ崟鍏冪礌鍦� ie 涓嬭兘缁ф壙瀛椾綋澶у皬 */
/* 娉細optgroup 鏃犳硶鎵舵 */
/** 閲嶇疆琛ㄦ牸鍏冪礌 **/
table { border-collapse: collapse; border-spacing: 0; }
/* 閲嶇疆 HTML5 鍏冪礌 */
article, aside, details, figcaption, figure, footer,header, hgroup, menu, nav, section,
summary, time, mark, audio, video {
    display: block;
    margin: 0;
    padding: 0;
}
mark { background: #ff0; }