跨平台重置Element style 位移
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td { margin: 0; padding: 0; border: 0; outline: 0; vertical-align: baseline; background: transparent; font-size:12px; font-weight:normal; line-height:1.86em; word-spacing: 1px; letter-spacing: 1px; } div{overflow:auto; width:100%;} ol, ul {list-style: none;} a{text-decoration:none;} hr,.br{clear:both;} blockquote, q {quotes: none;} blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; } /* remember to define focus styles! */ :focus { outline: 0;} /* remember to highlight inserts somehow! */ ins {text-decoration: none;} del {text-decoration: line-through;} /* tables still need 'cellspacing="0"' in the markup */ table {border-collapse: collapse; border-spacing: 0;}