我打算使用 Eric Meyer 的 CSS 重置,但我无意中发现了一些跨浏览器的差异(比如 input
边距)。基于此,我想出了一个更激进的方法:
(这个已经过时了,不要忘记在本题末尾查看当前修订版,随意批评)
/* CSS Reset by Hugo Leonardo. Based on Eric Meyer's CSS Reset (just google it). */
* {
margin: 0;
padding: 0;
border: 0;
outline: 0;
font: inherit;
text-decoration: none;
/* in case "font: inherit" fails (IE7) */
font-family: "times new roman";
font-size: 100%;
font-style: normal;
font-variant: normal;
font-weight: normal;
/* remove this block if you DON'T want to support lame browsers */
}
:before, :after {
content: '';
}
:link, :visited, :hover, :active {
color: inherit;
color: #000; /* for IE7 'inherit' problem (again) */
text-decoration: none;
}
:focus {
outline: 0;
}
ol li, ul li {
list-style: none;
}
table {
/* "collapse" here is because of IE7 (maybe others?). don't remove it as it affects other browsers as well */
border-collapse: collapse;
border-spacing: 0;
}
/* this entire block was copied from Eric Meyer's CSS reset */
/* HTML5 "display" reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}
它在所有经过测试的浏览器中运行顺畅:
- IE7
- IE8
- Chrome(最新)
- Firefox(最新)
- 歌剧(最新)
问题是:有人看到这里有什么麻烦吗?我认为自己的 CSS 不太好,所以我不知道这是否会在未来给我带来任何麻烦。
观察:此重置仅针对跨浏览器问题。它应该(或必须!)遵循元素的通用规则,例如 input
、a
、code
等(例如:“文本”类型的输入
将在没有边框的情况下不可见!)。 我将在稍后添加诸如通用 a
样式之类的东西。现在我正在重新设置,摆脱(几乎)所有在主要浏览器中不一样的东西。
目前发现的问题
*
选择器可能会导致性能问题。具有某些规则的
*
选择器会以无法恢复的方式覆盖元素的某些默认样式。例如:“提交”类型的input
的默认样式。令人惊讶的是
:before, :after { content: '';
破坏了 Firefox 中的选择元素。在修订版中,我尝试为所有输入元素设置
margin: 0
。对于checkbox
和radio
类型的输入,大多数浏览器会忽略它。
修订版
/* CSS Reset by Hugo Leonardo Leão Mota
Based on Eric Meyer's CSS Reset: http://meyerweb.com/eric/thoughts/2011/01/03/reset-revisited/
Helped by fellows in stackoverflow: http://stackoverflow.com/questions/6892982/is-this-css-reset-okay */
/* resetting style for every visible element except 'ruby' family and form controls
browsers deal with controls (and ruby style) in their own way */
a, abbr, acronym, address, b, big, blockquote, body,
br, caption, cite, code, col, colgroup, dd, del, dfn, div,
dl, dt, em, fieldset, form, h1, h2, h3, h4, h5, h6, hr, html, i,
img, ins, kbd, label, legend, li, noscript, object, ol, p, pre, q, samp,
small, span, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, ul, var {
margin: 0;
padding: 0;
border: 0;
outline: 0;
font: inherit;
text-decoration: none;
/* in case "font: inherit" fails (IE7) */
font-family: "times new roman";
font-size: 100%;
font-style: normal;
font-variant: normal;
font-weight: normal;
/* remove this block if you DON'T want to support lame browsers */
}
/* browsers are free to handle controls but
we can't let them mess up with the other elements */
button, select, textarea,
input[type=text], input[type=password], input[type=submit],
input[type=image], input[type=reset], input[type=button], input[type=file] {
margin: 0;
}
:link, :visited, :hover, :active {
color: inherit;
color: #000; /* for IE7 'inherit' problem (again) */
text-decoration: none;
}
:focus {
outline: 0;
}
ol li, ul li {
list-style: none;
}
table {
/* "border-collapse" here is because of IE7 different behaviour (maybe others?).
don't remove it as it affects other browsers as well */
border-collapse: collapse;
border-spacing: 0;
}
/* the next two blocks were copied from Eric Meyer's CSS reset */
blockquote:before, blockquote:after, q:before, q:after {
content: '';
}
/* HTML5 "display" reset for older browsers */
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}
结束
好吧,我越努力改进重置,它就越像 meyer's css reset ,所以我放弃了我的并采用了它。工作得很好 :p
最佳答案
我通常认为大范围的 CSS 重置并不是最好的。我同意拉斯·威克利 (Russ Weakley) 的观点,他将注意力集中在三个主要问题上:
- 每个被重置的元素都必须重新定义。 CSS 文件大小和维护工作可能会增加。
- 您可能会忘记重新设置您重置的内容的样式。
- 某些重置对依赖键盘进行导航的用户有害。
在此处查看他的整个演示文稿:http://www.maxdesign.com.au/articles/css-reset/
具体来说,我认为不应重置以下内容,因为它在您的样式表中
:before, :after {
content: '';
}
:link, :visited, :hover, :active {
color: inherit;
color: #000; /* for IE7 'inherit' problem (again) */
text-decoration: none;
}
:focus {
outline: 0;
}
ol li, ul li {
list-style: none;
}
focus
是一个可访问性问题。
ol
和 ul
应该有它们的默认样式。您可能需要它们。 (尽管您可能需要为导航覆盖它们。)
:link, :visited, :hover, :active
我只会在需要时重置这些。
正如您所提到和承认的那样,*{//}
可能会导致性能问题,并可能导致无法预料的问题。
另外,我会考虑添加一些东西来重置标题上的大顶部和底部边距
h1, h2, h3, h4, h5, h6 {margin-top:0; margin-bottom:0;}
关于html - 这个 CSS Reset 可以吗?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/6892982/