body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td {
    margin: 0;
    padding: 0;
}
body, button, input, select, textarea {
    font: 12px/1.5 tahoma,arial,宋体,sans-serif;
}
h1, h2, h3, h4, h5, h6 {
    font-size: 100%;
}
address, cite, dfn, em, var {
    font-style: normal;
}
code, kbd, pre, samp {
    font-family: courier new,courier,monospace;