html, body, div, p, ul, li, dl, dt, dd, h1, h2, h3, h4, h5, h6, form, input, select, button, textarea, iframe, table, th, td { margin: 0; padding: 0; }
img { border: 0 none; vertical-align: top; }
ul, li { list-style-type: none; }
body, input, select, button, textarea { font-size: 12px; font-family:Arial,"微软雅黑","黑体", Tahoma, Geneva, sans-serif;}
button { cursor: pointer; }
i, em, cite { font-style: normal; }

a, a:link { color:#000; text-decoration: none; transition: color 0.4s ease 0s;}
a:visited {  }
a:active, a:hover {text-decoration: none;}
a:focus { outline: none; }