那是因爲你還沒有自定義的復位屬性。像<p>
,<input>
等默認情況下有一些填充和邊距,當您添加一個屬性時,它相應地填充。
在跨瀏覽器的這種不一致的情況下,我建議你使用一個CSS復位可能Eric Mayer Reset
這將規範所有的差異,並應在所有瀏覽器均勻一致性使您的網頁。
驗證碼:
/* http://meyerweb.com/eric/tools/css/reset/
v2.0 | 20110126
License: none (public domain)
*/
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, 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,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}
body {
line-height: 1;
}
ol, ul {
list-style: none;
}
blockquote, q {
quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: '';
content: none;
}
table {
border-collapse: collapse;
border-spacing: 0;
}
希望這有助於。
你真的應該使用合適的菜單'UL/li'結構,然後用'邊境bottom' –
我可能給一個去,看看它是如何工作的 – SaturnsEye